Physics
Grade-10
Easy

Question

The mass of a cycle is 30 Kg.The cycle is revolving around a point. The radius of the circle formed is 40 m. The speed of the rotation is 5 m/s. the centrifugal force acting on the ball is ______

  1. 20 N
  2. 48 N
  3. 18.75 N
  4. 25 N

Hint:

F equals m v squared over r

The correct answer is: 18.75 N


    mass, m = 30kg
    velocity, v = 5 m/s
    radius, r = 40m
    centrifugal force Fc = ?
    Using the given formula, F subscript c equals fraction numerator m v squared over denominator gamma end fraction
    we will find the missing value,
    F subscript c equals fraction numerator 30 left parenthesis 5 right parenthesis squared over denominator 40 end fraction
    equals fraction numerator 30 cross times 25 over denominator 40 end fraction
    = 18.75 N

    Related Questions to study

    Grade-10
    Physics

    What is mass of a car which is revolving around a point. The radius of the circle formed is 120 m. The speed of the rotation is 5 m/s. the centrifugal force acting on the ball is 200 N.

    1. 500 Kg
    2. 750 Kg
    3. 960 Kg
    4. 1000 Kg

    What is mass of a car which is revolving around a point. The radius of the circle formed is 120 m. The speed of the rotation is 5 m/s. the centrifugal force acting on the ball is 200 N.

    PhysicsGrade-10
    1. 500 Kg
    2. 750 Kg
    3. 960 Kg
    4. 1000 Kg
    Grade-10
    Physics

    What is the centrifugal force acting when a ball is swirling around a point as it is tied to a rope. The radius of the circle formed is 20 cm. The mass of the ball is 300 gm. The speed of the rotation is 5 m/s.

    1. 37 N
    2. 37.5 N
    3. 38 N
    4. 38.5 N

    What is the centrifugal force acting when a ball is swirling around a point as it is tied to a rope. The radius of the circle formed is 20 cm. The mass of the ball is 300 gm. The speed of the rotation is 5 m/s.

    PhysicsGrade-10
    1. 37 N
    2. 37.5 N
    3. 38 N
    4. 38.5 N
    Grade-10
    Physics

    If car A and car B are both traveling at the same speed, which will require a higher centrifugal force?

    1. Car A
    2. Car B
    3. Both will require same
    4. Incomplete information 

    If car A and car B are both traveling at the same speed, which will require a higher centrifugal force?

    PhysicsGrade-10
    1. Car A
    2. Car B
    3. Both will require same
    4. Incomplete information 
    parallel
    Grade-10
    Physics

    Identify what is wrong in the diagram?

    1. Velocity
    2. Centripetal force
    3. Centrifugal force
    4. None

    Identify what is wrong in the diagram?

    PhysicsGrade-10
    1. Velocity
    2. Centripetal force
    3. Centrifugal force
    4. None
    Grade-10
    Physics

    What is the difference between centripetal and centrifugal force?

    1. Centripetal force is towards the center, centrifugal is tangential.
    2. Centripetal force is towards the center, centrifugal is outwards.
    3. Centripetal force is tangential, centrifugal is outwards.
    4. Centripetal force is tangential, centrifugal is inwards.

    What is the difference between centripetal and centrifugal force?

    PhysicsGrade-10
    1. Centripetal force is towards the center, centrifugal is tangential.
    2. Centripetal force is towards the center, centrifugal is outwards.
    3. Centripetal force is tangential, centrifugal is outwards.
    4. Centripetal force is tangential, centrifugal is inwards.
    Grade-10
    Physics

    Which of the following is NOT an example of centrifugal force at work?

    Which of the following is NOT an example of centrifugal force at work?

    PhysicsGrade-10
    parallel
    Grade-10
    Physics

    An object moves in a circular path at a constant speed. Compare the direction of the object’s velocity and centrifugal force.

    1. Both are in the same direction
    2. Both are in opposite direction
    3. Both are perpendicular to each other
    4. Incomplete information

    An object moves in a circular path at a constant speed. Compare the direction of the object’s velocity and centrifugal force.

    PhysicsGrade-10
    1. Both are in the same direction
    2. Both are in opposite direction
    3. Both are perpendicular to each other
    4. Incomplete information
    Grade-10
    Physics

    Which of these is not the unit for centripetal force?

    1.  K g space m divided by s squared
    2. N
    3. J/m
    4. Ergs

    Which of these is not the unit for centripetal force?

    PhysicsGrade-10
    1.  K g space m divided by s squared
    2. N
    3. J/m
    4. Ergs
    Grade-10
    Physics

    A motorcyclist rides in a vertical circle in a hollow sphere of radius 16 m. Find the minimum speed required so that he does not lose contact with the sphere at the highest point.

    1. 16 m/s
    2. 15.5 m/s
    3. 13 m/s
    4. 12.5 m/s

    A motorcyclist rides in a vertical circle in a hollow sphere of radius 16 m. Find the minimum speed required so that he does not lose contact with the sphere at the highest point.

    PhysicsGrade-10
    1. 16 m/s
    2. 15.5 m/s
    3. 13 m/s
    4. 12.5 m/s
    parallel
    Grade-10
    Physics

    Speed becomes ¼ th

    1. 16 times
    2. 1/16 times
    3. 4 times
    4. ¼ times

    Speed becomes ¼ th

    PhysicsGrade-10
    1. 16 times
    2. 1/16 times
    3. 4 times
    4. ¼ times
    Grade-10
    Physics

    Mass doubles

    1. 2 times
    2. ½ times
    3. 4 times
    4. ¼ times

    Mass doubles

    PhysicsGrade-10
    1. 2 times
    2. ½ times
    3. 4 times
    4. ¼ times
    Grade-10
    Physics

    Radius triples

    1. 9 times
    2. 1/9 times
    3. 3 times
    4. 1/3 times

    Radius triples

    PhysicsGrade-10
    1. 9 times
    2. 1/9 times
    3. 3 times
    4. 1/3 times
    parallel
    Grade-10
    Physics

    Identify the force being depicted by the red arrow?

    1. Centripetal force
    2. Centrifugal force
    3. Normal force
    4. Elastic force

    Identify the force being depicted by the red arrow?

    PhysicsGrade-10
    1. Centripetal force
    2. Centrifugal force
    3. Normal force
    4. Elastic force
    Grade-10
    Physics

    A car is rounding a bend as shown in the diagram. Which arrow correctly shows the direction of the centrifugal force applied on the car?

    1. A
    2. B
    3. C
    4. D

    A car is rounding a bend as shown in the diagram. Which arrow correctly shows the direction of the centrifugal force applied on the car?