Physics, 24.12.2019 01:31 Anybody6153

A25 kg bear slides, from rest, 12 m down a lodgepole pine tree, moving with a speed of 5.6 m/s just before hitting the ground.
(a) what change occurs in the gravitational potential energy of the bear – earth system during the slide?
(b) what is the kinetic energy of the bear just before hitting the ground?
(c) what is the average frictional force that acts on the sliding bear?

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A25 kg bear slides, from rest, 12 m down a lodgepole pine tree, moving with a speed of 5.6 m/s just...

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Physics, 22.12.2020 08:40

Solve this, dont even kniw the abc of it ...