A body starting from rest and moves with uniform acceleration. The velocities of the body are 40 m/s at the 4th second and 60 m/s at 8th sec

Question

A body starting from rest and moves with uniform acceleration. The velocities of the body are 40 m/s at the 4th second and 60 m/s at 8th second.
a) Calculate the acceleration of the body?
b) What will be its velocity after two seconds?

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Nguyệt Ánh 2 months 2021-07-29T20:53:03+00:00 1 Answers 5 views 0

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    2021-07-29T20:54:26+00:00

    Answer:

    GIVEN

    u is 40m/s and v=60m/s

    time is 4s

    therefore acceleration =60-40/4

    =20/4=5m/s^2

    b)next 2 sec=70m/s

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