Question

Using following data, draw velocity- time graph for a moving object:
Answer the following questions from the graph:
i) Find the velocity of the object at the end of 2.5 sec.
ii) Calculate the acceleration.
iii) If the mass of the object is 50 kg, find the force acting on the object.

Answer 1

Explanation:

acceleration, a = mF=1025=2.5m/s2

Using  v = u + at

we get, v - u = at    (velocity gain is 10m/s, so v-u = 10)

                  10 = 2.5t

                    t = 4s

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