A 2kg block initially at rest on a frictionless horizontal surface is subjected to the following successive forces along the same straight line:
(a) 6N eastward for 3s,
(b) 4N westward for the next 2s.
Answer the following:
(i) Calculate the acceleration of the block during each interval.
(ii) Find the magnitude and direction of the block’s velocity at the end of the 5s interval.
a. (i) Accelerations in the first and second intervals
b. (ii) Final velocity after 5s