Question

An object with a mass of 5 kg is moving at a speed of 10 m/s. Another object with a mass of 10 kg is moving at a speed of 5 m/s.

which of the objects has higher kinetic energy?
a. the 5 kg object has higher kinetic energy
b. the objects have equal kinetic energy
c. both objects have zero kinetic energy
d. the 10 kg object has higher kinetic energy

Answer 1

[AI-generated answer — Bot GPT 3.5]

The formula for kinetic energy is KE = (1/2)mv^2, where m is the mass of the object and v is its velocity.

For the 5 kg object:
KE1 = (1/2)(5 kg)(10 m/s)^2 = 250 J

For the 10 kg object:
KE2 = (1/2)(10 kg)(5 m/s)^2 = 125 J

Therefore, the 5 kg object has higher kinetic energy.

The answer is: a. the 5 kg object has higher kinetic energy.