The speed time graph of a body is shown in Fig. 1.72. Observe the graph carefully and answer the follow
i) What kinds of motion are represented by OP, PQ and QR ?
(ii) Calculate acceleration of the body for the first 2 sec.
(iii) Calculate retardation of body from 8 s to 14 s.
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Explanation:
1.OP is uniformly accelerated motion
PQ is zero accelerated or motion having uniform speed
QR is uniformly decelerated motion
2. using v=u+at
acceleration in OP is 5 m/s^2
3. using v=u+at
retardation is 5/3 m/s^2
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