Thankyou,
I understand there's both friction and the weight of the block acting on the object.
However there is no given mass for the object making it hard to calculate the acceleration as i end up with lots of different letters.
I don't understand how the coefficient of friction can be...
Initially a small block of wood is at a point O on a rough plane inclined at 15* to the horizontal.
The block is projected directly up the plane with initial speed 4m/s.
The coefficient of friction between the block and the plane is 1/10.
The block comes instantaneously at rest at A.
i)...