A box is sliding up a 40 degree incline. At a point 55cm from the bottom...

A box is sliding up a 40 degree incline. At a point 55cm from the bottom of the incline (measured along the incline) the phone has a speed of 1.4ms^-1. The coefficient of kinetic friction between the box and incline is 0.15.

a) Write expressions for Newton's second law in directions parallel and perpendicular to the surface of the incline. Thus show that the box will move a further 13cm up the incline.

b) After having stopped, the phone slides back down the incline. How far would box travel down in 0.1second (What the free body diagram look like to investigate this time period?).

Expert Solution

genius_generous answered 2 years ago

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