Question

a body accelerates at a constant rate of 10 m/s 2 of the body starts from rest find its final velocity in 2 seconds​

Answer 1

Answer:

v = 20 m / sec.

Explanation:

Given :

Initial velocity ( u )  = 0 m / sec

Acceleration ( a )  =  10 $m/sec^2$

Time ( t ) = 2 sec

We have to find final velocity ( v )

From first equation of motion we have

v = u + a t

where v = Final velocity

u = Initial velocity

a = acceleration

t = time

Put the value here

v = 0 + 10 × 2 m / sec

v = 20 m / sec.

Thus we get answer.

Answer 2

» A body accelerates at a constant rate of 10 m/s 2 if the body starts from rest. Find it's final velocity in 2 seconds.

Here..

Acceleration (a) = 10 m/s²

Body starts from rest .. means

Initial velocity (u) = 0 m/s

Time (t) = 2 sec

____________ [GIVEN]

• We have it find it's final velocity (v).

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We know that..

$\boxed{*\:v\:=\:u\:+\:at}$

Put the known values in above equation. So that we can find the value of v

=> v = 0 + 10 × 2

=> v = 20 m/s

______________________________

Final velocity is 20 m/s.

________ [ANSWER]

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