K.C.S.E Physics Q & A - MODEL 2008PP1QN15

K.C.S.E Physics Q & A - MODEL 2008PP1QN15

​ a) State Newton's second law of motion. 
b) A matatu starts from rest and accelerates to cover a distance of 49m in 7 seconds.
Determine
(i) Its acceleration; 
(ii) Its velocity, after 7 seconds 

​c) A trolley moving on a horizontal bench of height 1.2m, strikes a barrier at the edge of the bench. The brass mass on the top of the trolley flies off on impact and lands on the ground 2.5m from the edge of the bench.
Determine:
(i) The time taken by the brass mass to reach the ground; 
(ii) The speed at which the trolley struck the barrier. 

answers