solve ques 15 and 16 body is a straight line inclined to the time axis with
an obtuse angle. How is retardation calculated from
the velocity-time graph ?
Ans. By finding the negative slope.
15. Draw a graph for acceleration against time for a
uniformly accelerated motion. How can it be
used to find the change in speed in a certain
interval of time ?
16. Draw a velocity—time graph for the free fall of
a body under gravity, starting from rest. Take
g = 10m s 2
is the distance related with time for the
motion under uniform acceleration such as the
motion of a freely falling body ? Ans. S oc t2
A h n A, , rertain height. Show