Question

a force of 5 Newton moves a body at rest with an acceleration of 3 metre per second square for 4 second find the work done by the force.​

Answer 1

Answer:

Here, F= 5 N

u=0 m/ s

a = 3 m/ s²

t =4 sec

Using the formula,

s= ut+ 1/2at²

s =1/2×3×(4) ²

s=16×3/2

s = 24 m

Now, Work done = F. d

5×24=120 Joule

Answer 2

Answer:

120j

Explanation:

DISTANCE X = at²/2 = 3x16/2 = 24 m

work = F.X = 5x24 = 120j