Physics

Grade-10

Easy

Question

# What is the direction of the velocity at point mentioned if the ball is revolving clockwise.

At point C

- Up
- Down
- Left
- Right

Hint:

### Uniform circular motion says that the direction of a point moving in a circular motion is directed towards it's tangent.

## The correct answer is: Left

### Therefore point C is directed towards its left as it is moving clockwise in a circular path.

### Related Questions to study

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### What is the direction of the velocity at point mentioned if the ball is revolving clockwise.

At point B

- Up
- Down
- Left
- Right

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### What is the direction of the velocity at point mentioned if the ball is revolving clockwise.

At point A

- Up
- Down
- Left
- Right

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### What is the velocity formula for uniform circular motion?

### What is the velocity formula for uniform circular motion?

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### Which of the following depicts the direction of velocity of the ball circulated around a point?

- A
- B
- C
- D

### Which of the following depicts the direction of velocity of the ball circulated around a point?

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- A
- B
- C
- D

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### An object is moving in a uniform circular motion. It is released while moving in a circular motion. It will

- Fly out tangentially to the circular path.
- It will fly out radially to the circular path
- It will continue to move in circle
- It will move towards the center of the circle.

### An object is moving in a uniform circular motion. It is released while moving in a circular motion. It will

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- Fly out tangentially to the circular path.
- It will fly out radially to the circular path
- It will continue to move in circle
- It will move towards the center of the circle.

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### Which statement is true about an object that is moving in a uniform circular motion?

- The speed of the object varies.
- The net force on the object is directed towards the center of the circular path.
- The net force on the object is directed away from the center of the circular path.
- The velocity of the object is constant

### Which statement is true about an object that is moving in a uniform circular motion?

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- The speed of the object varies.
- The net force on the object is directed towards the center of the circular path.
- The net force on the object is directed away from the center of the circular path.
- The velocity of the object is constant

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### What is the relation between radius, velocity, and time period?

### What is the relation between radius, velocity, and time period?

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### When is an object said to be accelerated?

A student writes the following points:

- When there is change in speed.
- When there is change in direction.
- When there is change in the magnitude of the velocity.

Identify the correct option/s.

- Option a and b
- Option b and c
- Option a and c
- Option a, b and c

### When is an object said to be accelerated?

A student writes the following points:

- When there is change in speed.
- When there is change in direction.
- When there is change in the magnitude of the velocity.

Identify the correct option/s.

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- Option a and b
- Option b and c
- Option a and c
- Option a, b and c

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### In a motion the magnitude of the velocity is constant, but the direction is not constant, and the force is acting towards the center. Identify the motion being talked about.

### In a motion the magnitude of the velocity is constant, but the direction is not constant, and the force is acting towards the center. Identify the motion being talked about.

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### If there is a change in the rate of rotation, then the circular motion will be _______.

- Uniform
- Nonuniform
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### If there is a change in the rate of rotation, then the circular motion will be _______.

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- Nonuniform
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### The motion does not change in rpm. The motion shown has _______.

- Constant speed
- Constant direction
- Constant acceleration
- Non uniform motion

### The motion does not change in rpm. The motion shown has _______.

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- Constant speed
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### Find the acceleration and centripetal force applied on the boy of weight 72 Kg in the merry go round of diameter 70 cm which is moving in a uniform circular motion at the speed of 40 m/s.

- 400000N
- – 400000 N
- 329142 N
- 329142 N

### Find the acceleration and centripetal force applied on the boy of weight 72 Kg in the merry go round of diameter 70 cm which is moving in a uniform circular motion at the speed of 40 m/s.

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- 400000N
- – 400000 N
- 329142 N
- 329142 N

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### What is the centripetal force for an object of mass 50 Kg with the following specifications moving in a uniform circular motion.

Distance between the object and the axis point is 100 cm. Object’s speed is 40 m/s.

- 0.03 N
- – 0.03 N
- 80,000 N
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### What is the centripetal force for an object of mass 50 Kg with the following specifications moving in a uniform circular motion.

Distance between the object and the axis point is 100 cm. Object’s speed is 40 m/s.

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- 0.03 N
- – 0.03 N
- 80,000 N
- – 80,000 N

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### What is the centripetal force for an object of mass 50 Kg with the following specifications moving in a uniform circular motion.

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- 1600 N
- – 1600 N
- 3125 N
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### What is the centripetal force for an object of mass 50 Kg with the following specifications moving in a uniform circular motion.

Distance between the object and the axis point is 40 m. Object’s speed is 50 m/s.

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- 1600 N
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### What is the centripetal force for an object of mass 50 Kg with the following specifications moving in a uniform circular motion.

Distance between the object and the axis point is 20 cm. Object’s speed is 30 m/s.

- – 225000 N
- 225000 N
- 0.07 N
- – 0.07 N

### What is the centripetal force for an object of mass 50 Kg with the following specifications moving in a uniform circular motion.

Distance between the object and the axis point is 20 cm. Object’s speed is 30 m/s.

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- – 225000 N
- 225000 N
- 0.07 N
- – 0.07 N