subject
Physics, 14.04.2020 22:19 skylarschumacher7

A round object has a rotational inertia of I = ?MR2, where ? is a constant, M is its mass and R is its radius. It starts at rest and its center-of-mass rolls a distance d down a plane inclined at an angle ??, without slipping. As it rolls, it gains a center-of-mass speed of v and a rotational speed of ? over the distance d.

A) What is the change in rotational kinetic energy of the round object after it has moved the distance d?

B) What is the change in potential energy of the round object after it has moved the distance d?

C) Use the conservation of mechanical energy to determine the object's speed v at the distance d. Express the answer in terms of d, ?, ?, and any other constants necessary.

D) What fraction of the total kinetic energy of the rolling object is rotational? Express your answer in terms of ? alone.

ansver
Answers: 1

Another question on Physics

question
Physics, 22.06.2019 04:00
Simple machines can a. increase force only b. decrease force only c. increase or decrease force
Answers: 3
question
Physics, 22.06.2019 10:00
Because air contracts as it cools, the air pressure inside a freezer is typically lower than on the outside. why do ice cubes inside a freezer tend to shrink over time? a. the ice dissolves oxygen from the air, forming a denser crystalline matrix.b. the ice reacts chemically with carbon dioxide in the air, forming gaseous carbon compounds.c. the ice melts, and then the liquid freezes as ice crystals on the bottom of the freezer.d. the ice sublimes, and then the water vapor deposits as ice crystals on the sides of the freezer.
Answers: 1
question
Physics, 22.06.2019 10:40
As you are trying to move a heavy box of mass m, you realize that it is too heavy for you to lift by yourself. there is no one around to , so you attach an ideal pulley to the box and a massless rope to the ceiling, which you wrap around the pulley. you pull up on the rope to lift the box. use g for the magnitude of the acceleration due to gravity and neglect friction forces. once you have pulled hard enough to start the box moving upward, what is the magnitude f of the upward force you must apply to the rope to start raising the box with constant velocity? express the magnitude of the force in terms of m, the mass of the box.
Answers: 1
question
Physics, 22.06.2019 11:20
Wave functions describe orbitals in a hydrogen atom. each function is characterized by 3 quantum numbers: n, l, and ml. if the value of n = 2: the quantum number l can have values from to . the total number of orbitals possible at the n = 2 energy level is .
Answers: 3
You know the right answer?
A round object has a rotational inertia of I = ?MR2, where ? is a constant, M is its mass and R is i...
Questions
question
Spanish, 30.04.2021 14:20
question
Computers and Technology, 30.04.2021 14:20
question
Mathematics, 30.04.2021 14:20
question
History, 30.04.2021 14:20
question
Mathematics, 30.04.2021 14:20
Questions on the website: 13722363