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For a body starting from rest , the displacement is 10 sec , when it acquires 4 m/s in 2 seconds is​

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shubhanshuw773

30.09.2019

Physics

Secondary School

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For a body starting from rest the displacement in 10 sec when it acquires 4m/s in 2 sec is

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rajkumar707

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Answer:

Given, initial velocity u = 0m/s

Velocity after 2s, v = 4m/s

Acceleration a = (v - u)/t = (4-0)/2 = 2m/s^2

Under uniformly accelerated motion,

After t = 10s

S = ut + (1/2)at^2

S = 0 + (1/2) x 2 x (10^2) = 100m

S = 100m