Question

Example 3. A force of 50 N acts on a stationary
body of mass 10 kg for 2 s. Find the acceleration
produced in the body and velocity attained by it.​

Answer 1

Answer:-

Given:-

Force (F) = 50 N

Mass of the body (m) = 10 kg

Time (t) = 2 s.

Initial Velocity (u) = 0 m/s

[ velocity of a stationary body is 0 m/s ]

We know that,

F = ma

(a is the acceleration of the body)

Hence,

→ 50 = (10) * (a)

→ 50/10 = a

→ 5 m/s² = a

Let the final Velocity/velocity attained by the body be v m/s.

We know,

Acceleration (a) = (v - u) / t.

Hence,

→ 5 = (v - 0) / 2

→ 5 * 2 = v

→ 10 m/s = v

Therefore,

• Acceleration produced = 5 m/s²

• Velocity attained by the body = 10 m/s.