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:

A 4 kg object is moving horizontally with a speed of 5 m/s. To increas

1.	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:
A.	150 J
B.	100 J
C.	50 J
D.	75 J
Answer» B. 100 J