Physics

A body initially at rest, starts moving with a constant acceleration of 0.5 ms-2 and travels a distance 25 m, then its final velocity is:

  1. 5 ms-1
  2. 20 ms-1
  3. 15 ms-1
  4. -15 ms-1

Motion in One Dimension

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Answer

5 ms-1

Reason — Given,

u = 0
a = 0.5 ms-2
S = 25 m
v = ?

Using, v2 = u2 + 2aS

v2 = 0 + [2 x 0.5 x 25] = 25

Hence, v = 5 ms-1

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