A 4kg block is gently released from rest on a smooth plane inclined at 30∘ to the horizontal. Neglect air resistance.
a. (i) Calculate the acceleration of the block down the plane.
b. (ii) Find its speed after 3s.
c. (iii) Determine the distance it travels in the first 3s.
d. (iv) Compute the work done by the component of gravitational force along the plane in this interval.