Author Question: Which object has larger kinetic energy: a 500-kg object moving with a speed of 40 m/s or 1000-kg ... (Read 133 times)

tingc95 · **on:** Jul 29, 2018

Which object has larger kinetic energy: a 500-kg object moving with a speed of 40 m/s or 1000-kg object moving at 20 m/s?

A) the 500-kg object moving at 40 m/s
B) Both have same kinetic energy.
C) the 1000-kg object moving at 20 m/s
D) Kinetic energy is independent of mass.
E) Kinetic energy is independent of speed.

Question 2

The density of a solid object is defined as the ratio of the mass of the object to its volume. The dimension of density is

A) M/L.
B) L3/M.
C) M L-3.
D) MLT.
E) ML.