Question

A block of mass 50kg was left to slide down a ramp elevated at an angle of 45 decrease as shown in the diagram below (assume g=9.8 ms^-2).
I . Calculate the net force causing the block to slide down the ramp (assume no friction)
II. Calculate the net force causing the block to slide down the ramp if a 5N friction force (f) acts on it.
III.What is the acceleration of the block if a 5N frictional force is acting on it.
IV.What is the magnitude of the normal force (n).

Answer 1

I don't know the answer.I expect you guys to answer my question please,immediately.

Answer 2

Little pushy aren't you?
Especially since we have no diagram.