Home
Class 11
PHYSICS
If there is change of angular momentum f...

If there is change of angular momentum from J to 4J in 4S, then the torque is

A

`(3)/(4)J`

B

1 J

C

`(5)/(4)J`

D

`(4)/(3)J`

Text Solution

Verified by Experts

The correct Answer is:
A
`tau = (dL)/(dt)= (L_(2)-L_(1))/(t_(2)- t_(1))=(4 - 1)/(4 - 0)=(3)/(4)=(3)/(4)J`
Promotional Banner

Topper's Solved these Questions

  • SAMPLE PAPER - 19 (UNSOLVED)

    FULL MARKS|Exercise PART -II|9 Videos

  • SAMPLE PAPER - 19 (UNSOLVED)

    FULL MARKS|Exercise PART - III|9 Videos

  • SAMPLE PAPER - 18 (UNSOLVED)

    FULL MARKS|Exercise PART - IV|10 Videos

  • SAMPLE PAPER - 20 (SOLVED)

    FULL MARKS|Exercise PART-IV|10 Videos

Similar Questions

Explore conceptually related problems

The rate of change of angular momentum is

A constant torque acting on a uniform circular wheel changes its angular momentum from A^@ to 4 A^@ in 4 sec. The value of torque will be

The kinetic energy of rotation K depends on the angular momentum J and moment of inertia I. Find the expression for kinetic energy.

The kinetic energy of rotation K depends on the angular momentum J and moment of inertia I. Find the expression for kinetic energy.

A rigid body rotates with an angular momentums L. If its kinetic energy is reduced to one fourth (1/4) their angular momentum becomes:

If the angular momentum of a planet is given by . vec(L) = 5t^(2)hat(i) - 6that(j) + 3hat(k) . What is the torque experienced by the planet? Will the torque be in the same direction as that of the angular momentum?