solve ques 15 and 16

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

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