Physics-
General
Easy

Question

If you want to pile up sand onto a circular area of radius R. The greatest height of the sand pile that can be erected without spilling the sand onto the surrounding area, if  is the coefficient of friction between sand particle is

  1. R    
  2.  mu squared straight R  
  3. mu R    
  4. straight R over mu    

The correct answers are: mu squared straight R, mu R

Related Questions to study

General
physics-

Two forces are simultaneously applied on an object. What third force would make the net force to point to the left (–x direction) ?

Two forces are simultaneously applied on an object. What third force would make the net force to point to the left (–x direction) ?

physics-General
General
physics-

A car is going at a speed of 6 m/s when it encounters a 15 m slope of angle  . The friction coefficient between the road and tyre is 0.5. The driver applies the brakes. The minimum speed of car with which it can reach the bottom is open parentheses straight g equals 10 straight m divided by straight s squared close parentheses

A car is going at a speed of 6 m/s when it encounters a 15 m slope of angle  . The friction coefficient between the road and tyre is 0.5. The driver applies the brakes. The minimum speed of car with which it can reach the bottom is open parentheses straight g equals 10 straight m divided by straight s squared close parentheses

physics-General
General
physics-

A block of mass m = 2 kg is resting on a rough inclined plane of inclination 300 as shown in figure. The coefficient of friction between the block and the plane is µ = 0.5. What minimum force F should be applied perpendicular to the plane on the block, so that block does not slip on the plane (g=10m/s to the power of 2 end exponent )

A block of mass m = 2 kg is resting on a rough inclined plane of inclination 300 as shown in figure. The coefficient of friction between the block and the plane is µ = 0.5. What minimum force F should be applied perpendicular to the plane on the block, so that block does not slip on the plane (g=10m/s to the power of 2 end exponent )

physics-General
parallel
General
physics-

A block of mass of 10 kg lies on a rough inclined plane of inclination theta equals s i n to the power of negative 1 end exponent invisible function application open parentheses fraction numerator 3 over denominator 5 end fraction close parentheses with the horizontal when a force of 30N is applied on the block parallel to and upward the plane, the total force exerted by the plane on the block is nearly along (coefficient of friction is µ = fraction numerator 3 over denominator 4 end fraction ) ( g = 10 m/S subscript equals end subscript superscript 2 end superscript )

A block of mass of 10 kg lies on a rough inclined plane of inclination theta equals s i n to the power of negative 1 end exponent invisible function application open parentheses fraction numerator 3 over denominator 5 end fraction close parentheses with the horizontal when a force of 30N is applied on the block parallel to and upward the plane, the total force exerted by the plane on the block is nearly along (coefficient of friction is µ = fraction numerator 3 over denominator 4 end fraction ) ( g = 10 m/S subscript equals end subscript superscript 2 end superscript )

physics-General
General
physics-

A block of mass 3 kg is at rest on a rough inclined plane as shown in the figure. The magnitude of net force exerted by the surface on the block will be (g=10 m/S subscript equals end subscript superscript 2 end superscript )

A block of mass 3 kg is at rest on a rough inclined plane as shown in the figure. The magnitude of net force exerted by the surface on the block will be (g=10 m/S subscript equals end subscript superscript 2 end superscript )

physics-General
General
Maths-

If a with minus on top equals i with minus on top plus j with minus on top plus k with minus on top text  and  end text b with minus on top equals stack i with minus on top minus j with minus on top with blank on top then the vectors Error converting from MathML to accessible text. and Error converting from MathML to accessible text.

We can check for parallelepiped. We can take the scalar product of the given vectors. If we do that, we will find the volume to be 6 units. It doesn't match any option.

If a with minus on top equals i with minus on top plus j with minus on top plus k with minus on top text  and  end text b with minus on top equals stack i with minus on top minus j with minus on top with blank on top then the vectors Error converting from MathML to accessible text. and Error converting from MathML to accessible text.

Maths-General

We can check for parallelepiped. We can take the scalar product of the given vectors. If we do that, we will find the volume to be 6 units. It doesn't match any option.

parallel
General
physics-

In the shown situation, which of the following is/are possible ?

In the shown situation, which of the following is/are possible ?

physics-General
General
physics-

A block of mass m = 2 kg is resting on a rough inclined plane of inclination 300 as shown in figure. The coefficient of friction between the block and the plane is µ = 0.5. What minimum force F should be applied perpendicular to the plane on the block, so that block does not slip on the plane (g=10m/s to the power of 2 end exponent )

A block of mass m = 2 kg is resting on a rough inclined plane of inclination 300 as shown in figure. The coefficient of friction between the block and the plane is µ = 0.5. What minimum force F should be applied perpendicular to the plane on the block, so that block does not slip on the plane (g=10m/s to the power of 2 end exponent )

physics-General
General
physics-

A block of mass of 10 kg lies on a rough inclined plane of inclination theta equals s i n to the power of negative 1 end exponent invisible function application open parentheses fraction numerator 3 over denominator 5 end fraction close parentheses with the horizontal when a force of 30N is applied on the block parallel to and upward the plane, the total force exerted by the plane on the block is nearly along (coefficient of friction is µ = fraction numerator 3 over denominator 4 end fraction ) ( g = 10 m/S subscript equals end subscript superscript 2 end superscript )

A block of mass of 10 kg lies on a rough inclined plane of inclination theta equals s i n to the power of negative 1 end exponent invisible function application open parentheses fraction numerator 3 over denominator 5 end fraction close parentheses with the horizontal when a force of 30N is applied on the block parallel to and upward the plane, the total force exerted by the plane on the block is nearly along (coefficient of friction is µ = fraction numerator 3 over denominator 4 end fraction ) ( g = 10 m/S subscript equals end subscript superscript 2 end superscript )

physics-General
parallel
General
physics-

A block of mass 3 kg is at rest on a rough inclined plane as shown in the figure. The magnitude of net force exerted by the surface on the block will be (g=10 m/S subscript equals end subscript superscript 2 end superscript )

A block of mass 3 kg is at rest on a rough inclined plane as shown in the figure. The magnitude of net force exerted by the surface on the block will be (g=10 m/S subscript equals end subscript superscript 2 end superscript )

physics-General
General
physics-

As shown in figure, the left block rests on a table at distance null = Normal reaction between A & B N subscript 2 end subscript = Normal reaction between B & C Which of the following statement(s) is/are correct ?

As shown in figure, the left block rests on a table at distance null = Normal reaction between A & B N subscript 2 end subscript = Normal reaction between B & C Which of the following statement(s) is/are correct ?

physics-General
General
physics-

As shown in figure, the left block rests on a table at distance lambda  from the edge while the right block is kept at the same level so that thread is unstretched and does not sag and then released. What will happen first ?


As shown in figure, the left block rests on a table at distance lambda  from the edge while the right block is kept at the same level so that thread is unstretched and does not sag and then released. What will happen first ?


physics-General
parallel
General
physics-

If the string is pulled down with a force of 120 N as shown in the figure, then the acceleration of 8 kg block would

If the string is pulled down with a force of 120 N as shown in the figure, then the acceleration of 8 kg block would

physics-General
General
physics-

With what acceleration ‘a’ shown the elevator descends so that the block of mass M exerts a force of fraction numerator M g over denominator 10 end fraction blankon the weighing machine? [g = acceleration due to gravity]

With what acceleration ‘a’ shown the elevator descends so that the block of mass M exerts a force of fraction numerator M g over denominator 10 end fraction blankon the weighing machine? [g = acceleration due to gravity]

physics-General
General
physics-

An astronaut accidentally gets separated out of his small spaceship accelerating in inter-stellar space at a constant acceleration of 10 m/S to the power of 2 end exponent . What is the acceleration of the astronaut at the instant he is outside the spaceship ?

An astronaut accidentally gets separated out of his small spaceship accelerating in inter-stellar space at a constant acceleration of 10 m/S to the power of 2 end exponent . What is the acceleration of the astronaut at the instant he is outside the spaceship ?

physics-General
parallel

card img

With Turito Academy.

card img

With Turito Foundation.

card img

Get an Expert Advice From Turito.

Turito Academy

card img

With Turito Academy.

Test Prep

card img

With Turito Foundation.