Physics Physics Practice Problems Solutions Library

# Conservation of Energy with Rotation Solutions Library

Access 14 Conservation of Energy with Rotation video and text solutions to help you complete your homework. Need to revisit the concept? Watch our Conservation of Energy with Rotation learn videos.

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14 solutions

Conservation of Energy with Rotation

#### Q. In a classic carnival ride, patrons stand against the wall in a cylindrical-shaped room. Once the room gets spinning fast enough, the floor drops f...

Solved • Feb 25, 2021

Conservation of Energy with Rotation

#### Q. In softball, the pitcher throws with the arm fully extended (straight at the elbow). In a fast pitch the ball leaves the hand with a speed of 139 k...

Solved • Jul 15, 2020

Conservation of Energy with Rotation

#### Q. An Unfair Race This applet shows the results of releasing a frictionless block and a rolling disk with equal masses from the top of identical incli...

Solved • Apr 24, 2020

Conservation of Energy with Rotation

#### Q. You have a pumpkin of mass M and radius R. The pumpkin has the shape of a sphere, but it is not uniform inside so you do not know its moment of ine...

Solved • Apr 20, 2020

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

Conservation of Energy with Rotation

#### Q. A uniform hollow disk has two pieces of thin light wire wrapped around its outer rim and is supported from the ceiling (See the figure below). Sudd...

Solved • Mar 18, 2019

Conservation of Energy with Rotation

#### Q. A solid cylinder with moment of inertia I = 1/2 MR2, a hollow cylinder with moment of inertia I = MR2 and a solid sphere with moment of inertia I =...

Solved • Jun 1, 2017

Conservation of Energy with Rotation

#### Q. A thin rod of length 2.8 m and mass 4.2 kg is held vertically with its lower end resting on a frictionless horizontal surface. The rod is then let ...

Solved • May 19, 2017

Conservation of Energy with Rotation

#### Q. A uniform rod of mass m and length l is pivoted about a horizontal, frictionless pin at the end of a thin extension (of negligible mass) a distance...

Solved • May 17, 2017

Conservation of Energy with Rotation

#### Q. A 2 kg mass hangs from a rope wrapped around the surface of a cylindrical pulley. The pulley has a mass of 12 kg and a radius of 0.4 m. If the 2 kg...

Solved • May 10, 2017

Conservation of Energy with Rotation

#### Q. A 5 kg mass hangs from a rope wrapped around the surface of a cylindrical pulley. The pulley has a mass of 20 kg and a radius of 0.8 m. If the 5 kg...

Solved • May 10, 2017

Conservation of Energy with Rotation

#### Q. A solid disk is released from rest and rolls without slipping down an inclined plane that makes an angle of 25.0° with the horizontal. What is the ...

Solved • Mar 6, 2017

Conservation of Energy with Rotation

#### Q. A thin-walled hollow cylinder (I = MR2), with mass M = 3.00 kg and radius R = 0.200 m, is rolling without slipping at the bottom of a hill. At the ...

Solved • Feb 7, 2017

Conservation of Energy with Rotation

#### Q. A thin-walled hollow sphere with mass 5.0 kg and radius 0.20 m is rolling without slipping at the base of an incline that slopes upward at 37° abov...

Solved • Feb 6, 2017