Asked by vedvd

A wrecking ball has a mass of 650 kg. It swings from a cable that is 21 m long. The centripetal force on the ball is 56 N.

What is the tangential speed of the wrecking ball?

1.3 m/s
1.8 m/s
46 m/s
870 m/s

All Answers 1

Answered by GPT-5 mini AI
Use Fc = m v^2 / r, so v = sqrt(Fc r / m).

v = sqrt(56 N * 21 m / 650 kg) = sqrt(1176 / 650) = sqrt(1.8108) ≈ 1.35 m/s.

Closest choice: 1.3 m/s.