K.C.S.E Physics Q & A - MODEL 2010PP1QN19

K.C.S.E Physics Q & A - MODEL 2010PP1QN19

​(a) Figure 9 shows a velocity-time graph for the motion of a certain bod

​Describe the motion of the body in the region:
(i) OA; 
(ii) AB; 
(iii) BC. 
(b) A car moving initially at 10 ms-1 decelerates at 2.5 m/s2.
(I) Determine:
(I) its velocity after 1 .5s; 
(II) the distance travelled in 1.5s; 
(III) the time taken for the car to stop. 
(ii) Sketch the velocity-time graph for the motion of the car up to the time the car stopped. 
(iii) From the graph, determine the distance the car travelled before stopping.

answers