Question

A force of 24 newton act on a body of mass 8 kg moving with a velocity of 6m/s what will be its velocity after 4 second

Answer 1

Answer: 18 m/s

Explanation:

We know F=ma (mass *acceleration)

Using this

24=8*a

a=3m/s^2

We also know

a=v-u/t ( v= final velocity

u=initial velocity

t=time taken)

3=v-6/4

12=v-6

v=18 m/s^2

Answer 2

Answer:

18m/s

Explanation:

we know that,

• F=ma
• F=24N,m=8kg,
• so we can find the acceleration of the body by using the formula F=ma
• 24=8a
• a=24/8=3
• now we are given the initial velocity of body which is 6m/s
• by using the equation v=u+at we can find the the velocity of body after 4sec
• v=6+3*4
• v=18m/s