Question

an object of mass20 kg is moving with a velocity 15 m/s its velocity incresesto 35m/s on applaying this content force contiusly for 5s calculate theaccelaration and calculate the force applid​

Answer 1

Answer:

cool I guess I will be here for a while

Answer 2

Given : Initial velocity u=5 ms

−1

Final velocity v=2 ms

−1

From work-energy theorem,

W=ΔK.E

W=

2

1

mv

2

−

2

1

mu

2

W=

2

1

×20×2

2

−

2

1

×20×5

2

⟹W=−210 J