A body of mass m kg is projected from a point A up the line of greatest slope of a plane inclined at 20° to the horizontal, as shown. The initial speed of the body is 10 ms-1.
(a) Assuming that the plane is smooth, find
(i) the acceleration of the body
(ii) the distance it travels up the plane before coming instantaneously to rest.
In fact the plane is rough. The coefficient of friction between the body and the plane is mew. The body comes to rest after 9 m.
(b) Calculate the value of mew. (5)
(c) Show that the body slides back down the plane, arriving at A with
speed 4.55 ms-1.
x
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- 30-10-2015 22:31
Can you show your working thus far? Just so I know exactly where you're getting stuck.
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- 30-10-2015 22:48
(Original post by Jordan\)
Can you show your working thus far? Just so I know exactly where you're getting stuck.
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Updated: October 30, 2015
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