Question

a particle moving with an initial velocity of 5m/s in subjected to a uniform acceleration of-2.5m/s square find displacement in next 4 sec

Answer 1

s=ut+1/2at2 , since U=5: t=4: and a=-2.5, hence
s=5x4+1/2x(-2.5)(4)2 => 20+1/2x(-2.5)x16 => 20+1/2x(-400) => 20+(-20) => 0 m

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Answer 2

Answer:

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