physics

posted by .

need some help, A ball with an initial angular velocity of 20.0 rads /s and a rotational inertia of 0.4kgm rolls uphill with an acceleration of -4.00 rad/s . Calculate the net torque acting on the ball. Calculate the angular displacement after 5.00 s.

Similar Questions

1. physics

A spinning flywheel has rotational inertia I = 402.9 kgm2. Its angular velocity decreases from 20.3 rad/s to zero in 266.6 s due to friction. What is the frictional torque acting?
2. Physic (concepts-please check my thoughts)

A net torque applied to a rigid object always tends to produce?
3. Physics

I need help with this problem. A ceiling fan is turned on and a net torque of 2.0 Nm is applied to the blades. The blades have a total moment of inertia of 0.24 kgm2. What is the angular acceleration of the blades in rad/s2?

A uniform solid disk with a mass of 40.3 kg and a radius of 0.454 m is free to rotate about a frictionless axle. Forces of 90.0 N and 125 N are applied to the disk (a) What is the net torque produced by the two forces?
5. ap phyiscs

A bowler throws a bowling ball of radius R=11 cm down a lane. The ball slides on the lane, with initial speed v(of the center of mass)=7 m/s and initial angular speed =0. The coefficient of kinetic friction between the ball and the …
6. Physics

An ice skater, has a rotational inertia of I = 4 kg m2, and spins at 2 rad/sec. She then changes her rotational inertia to 2 kg m2. What is her final angular velocity?
7. Physics

An ice skater, has a rotational inertia of I = 4 kg m2, and spins at 2 rad/sec. She then changes her rotational inertia to 2 kg m2. What is her final angular velocity?
8. physics help!

A small 520-gram ball on the end of a thin, light rod is rotated in a horizontal circle of radius 1.5 m. Calculate the moment of inertia of the ball about the center of the circle. Then calculate the torque needed to keep the ball …
9. physics

need some help, A ball with an initial angular velocity of 20.0 rads /s and a rotational inertia of 0.4kgm rolls uphill with an acceleration of -4.00 rad/s . Calculate the net torque acting on the ball. Calculate the angular displacement …
10. physics

A spinning flywheel has rotational inertia I = 401.9 kg ยท m2. Its angular velocity decreases from 20.5 rad/s to zero in 257.1 s due to friction. What is the frictional torque acting?

More Similar Questions