Question

4 kg object is moving horizontally speed of 5 metre per second to increase its feet 28 m per second the amount of

Answer 1

Answer:

m=4 kg

u=5 m/s

v=10 m/s

according to work energy theorem

w=1/2*m*(v2-u2)

w=1/2*4*(102-52)

w=1/2*4*(100-25)

w=2×75

w=150 J