A body initially at rest accelerates at the rate of 0.8m/s2 for 20 seconds.Find the final velocity of the body.
v = Vi + a t
v = 0 + .8 m/s^2 * 20 s
= 16 m/s
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To find the final velocity of the body, we need to use the formula for velocity:
final velocity = initial velocity + (acceleration x time)
In this case, the body is initially at rest, so the initial velocity is 0. The acceleration is given as 0.8 m/s^2, and the time is given as 20 seconds.
Substituting the values into the formula:
final velocity = 0 + (0.8 x 20)
final velocity = 0 + 16
final velocity = 16 m/s
Therefore, the final velocity of the body is 16 m/s.