The kinetic energy of a body is ‘K’. If one-fourth of its mass is removed and velocity is doubled, the new kinetic energy will be _____
A. K
B. 3K
C. 4K
D. 9K/4
Answer:B
The kinetic energy of a body is ‘K’. If one-fourth of its mass is removed and velocity is doubled, the new kinetic energy will be _____
A. K B. 3K C. 4K D. 9K/4