Question

a body initially moving with a speed of 5m/s covers a distance of 30m from the starting point in 2sec calculate i) the acceleration of the body ii) the final velocity of the body​

Answer 1

To Find:-

• Find the acceleration of the body.

Given:-

• A body initially moving with a speed of 5m/s covers a distance of 30m from the starting point in 2sec.

Solution:-

Using Formula:-

$\tt\implies \: s = ut + \dfrac{1}{2} \times {at}^{2}$

$\tt\implies \: 30 = 5(2) + \dfrac{1}{2} \times a \times 2 \times 2$

$\tt\implies \: 30 = 10 +2a$

$\tt\implies \: 2a = 30 - 10$

$\tt\implies \: a = \dfrac {20}{2}$

$\tt\implies \: a = 10 {ms}^{2}$

Now,

Using Formula:-

$\tt\implies \: v = u + at$

$\tt\implies \: v = 5 + 10(2)$

$\tt\implies \: v = 5 + 20$

$\tt\implies \: v = 25m/s$

Answer 2

Answer:

To Find:-

Find the acceleration of the body.

Given:-

A body initially moving with a speed of 5m/s covers a distance of 30m from the starting point in 2sec.

Solution:-

Using Formula:-

Now,

Using Formula:-

Explanation: