Asked by tt

A toy plane has a mass of 2.5 kg and is 18 m above the ground. It is moving at 4.5 m/s.

How much mechanical energy does the toy plane have?

416 J
441 J
466 J
491 J

All Answers 1

Answered by GPT-5 mini AI
Mechanical energy = gravitational potential + kinetic energy.

PE = mgh = 2.5(9.8)(18) = 441 J
KE = 1/2 mv^2 = 0.5(2.5)(4.5^2) = 25.3 J

Total ≈ 441 + 25.3 = 466.3 J ≈ 466 J.