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Physics Solutions Library

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2,785 solutions

Intro to Rotational Kinetic Energy

Q. Biomedical measurements show that the arms and hands together typically make up 13.0 % of a persons mass, while the legs and feet together account ...

Solved • Mar 18, 2019
Conservation of Energy in Rolling Motion

Q. A sphere of radius exttip{r_0}{r_0} = 23.0 cm and mass m = 1.20 kg starts from rest and rolls without slipping down a 36.0 degree incline that is 1...

Solved • Mar 18, 2019
Energy of Rolling Motion

Q. A bowling ball of mass 7.6 kg and radius 9.0 cm rolls without slipping down a lane at 3.6 m/s. Calculate its total kinetic energy.

Solved • Mar 18, 2019
Conservation of Energy in Rolling Motion

Q. Calculate the translational speed of a cylinder when it reaches the foot of an incline 7.30 m high. Assume it starts from rest and rolls without sl...

Solved • Mar 18, 2019
Rotational Velocity & Acceleration

Q. A roller in a printing press turns through an angle θ(t) given by θ(t) = γt2 - βt3 , where γ = 3.20 rad/s2 and β eta= 0.500 rad/s3{ m{ rad/s}}^3.a)...

Solved • Mar 18, 2019
Conservation of Energy with Rotation

Q. A 2.30-m-long pole is balanced vertically on its tip. It starts to fall and its lower end does not slip. What will be the speed of the upper end of...

Solved • Mar 18, 2019
Intro to Rotational Kinetic Energy

Q. A merry-go-round has a mass of 1550 kg and a radius of 7.60 m. How much net work is required to accelerate it from rest to a rotation rate of 1.00 ...

Solved • Mar 18, 2019