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26/10/2021 5:35 pm
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Given alongside is the velocity-time graph for a moving body. Find :
(i) Velocity of the body at point C.
(ii) Acceleration acting on the body between A and B
(iii) Acceleration acting on the body between B and C.
1 Answer
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26/10/2021 5:38 pm
(i) BC represents uniform velocity.
From graph, we see that the velocity of the body at point C = 40km/h
(ii) Acceleration between A and B = slope of line AB
= \(\frac{(40 - 20)km/h}{(3 -0)h}\)
= 6.66 km/h2
(iii) BC represents uniform velocity, so acceleration acting on the body between B and C is zero.