Question

A body is at rest attaining acceleration of 4ms. Find its Velocity at the end of half a meter​

Answer 1

Answer:

4ms-1

Explanation:

v²=u²+2as

=0²+2×4×0.5

v²=4

v=4

Answer 2

Answer:

v = 2 m/s

Explanation:

It is given that,

Initial speed of the body, u = 0

Acceleration of the body, $a=4\ m/s^2$

Let v is the velocity of the body at the end of half a meters, s = 1/2

v can be calculated using the third equation of motion as :

$v^2=u^2+2as$

$v^2=(0)^2+2\times 4\times \dfrac{1}{2}$

v = 2 m/s

So, the velocity of the body at the end of half a meters is 2 m/s. Hence, this is the required solution.