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Sam needs to push a 5.0 kg package up a frictionless ramp that is (8/3) m...

Sam needs to push a 5.0 kg package up a frictionless ramp that is (8/3) m long and inclined 20◦above the horizontal. Sam pushes with a force that is parallel to the incline.•The initial speed of the package is 0 m/s and the final speed at the top of the ramp is 0 m/s.•The package accelerates parallel to the ramp with a magnitude of a(t) =−4(m/s^3)t+ 4(m/s^2). What is the instantaneous power that Sam applies to the package at t= 1 s?

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