An empty truck traveling at 10km/h has kinetic energy. How much kinetic energy does it have when its mass is doubled?

Explanation:

An empty truck traveling at 10 km/h has kinetic energy. How much kinetic energy does it have when its speed is doubled?

✓ a) the same kinetic energy b) twice the kinetic energy c) four times the kinetic energy d) more than four times the kinetic energy ANSWER: C

the answer is C

Explanation:

what was the answer?

what was the acceleration of the 2 kg cart?

⇒ 16.0 cm/s2

what was the acceleration of the 4 kg cart?

⇒ 8.1 cm/s2

what was the acceleration of the 6 kg cart?

⇒ 5.3 cm/s2