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potential energy? Explain Drag the terms on the left to the appropriate blanks o

ID: 1790643 • Letter: P

Question

potential energy? Explain Drag the terms on the left to the appropriate blanks on the right to complete the sentences. Reset Help removing energy from n the crate slid down the ramp at a constant speed without Jason pushing back on 1 (as n could the angle were adustedjust right)then, by conservation of energy the increase in equal the loss in less than energy would exactly energy But in fact Jason is pushing on the crate in a direction opposite is motion Thus he is doing systemm positive thermal aork on the crate the So some of the loss of gone into increasing system, so the increase in thermal energy is actualy loss in potentialenergy eneegy that would otherwise have greater than enengy is instead removed from the adding energy to rotational kinetic equal to

Explanation / Answer

If the crate slid down the ramp at a constant speed without Jason pushing back on it (as it could if the angle were adjusted just right) then, by conservation of energy, the increase in thermal energy would exactly equal the loss in gravitational potential energy.

But in fact Jason is pushing on the crate in a direction opposite its motion. Thus, he is doing negative work on the crate, removing energy from the system.

So some of the loss of gravitational potential energy that would otherwise have gone into increasing thermal energy is instead removed from the system, so the increase in thermal energy is actually less thanthe loss in potential energy.

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