Question

The KE of a body is increased most by doubling its:

• A. mass
• B. weight
• C. speed
• D. density

Answer 1

The correct option is C speed

we know,
K.E$=\frac{1}{2}m{v}^2$
if we doubling the mass the kinetic energy will get doubled,but if we doubling the speed the kinetic
energy will increase 4 times.
so, The KE of a body is increased most by doubling its speed.