Question

the speed of 20kg body changes from 20m/s to 50m/s in 2 seconds.what is its acceleration
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Answer 1

Answer:

a=v-u/t

a=50m/s - 20m/s / t

a=30m/s / t

a=30/2

a=25m/s2

Answer 2

Explanation:

$acceleration = \frac{v - u}{t}$

where , v is the final velocity

u is the initial velocity

and t is the time taken.

$a = \frac{50 - 20}{2}$

$a = \frac{30}{2} = 15 \: m {s}^{ - 2}$

Therefore, the acceleration of the body is 15 m/s^2.

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