Question

.3 The velocity of a body moving at an initial speed of 20 m/s and having an

acceleration of 4 m/s

2

after 2 second will be.​

Answer 1

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Answer 2

Answer:

Final velocity(v) = 28m/s

Explanation:

according to Newton's 1st kinematical equation,

final velocity(v) = initial velocity(u)+ acceleration(a)×time

Given: u=20m/s

a=4m/s^2

t= 2s

then,

v = u + at

v = 20 + 4×2

v = 20 + 8

v = 28 m/s

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