A 4 kg object is moving horizontally with a speed of 5 m/s. To increase its speed to 10 m/s, the amount of net work required to be done on this object is:

Answer: Option A

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