Question

Tori experiments with pulleys in physics class. She applies 70 newtons of force to a single pulley to lift a bowling ball. By adding another pulley, she'd get a mechanical advantage of 2. What's the minimum input force she'll need to lift the ball if she adds another pulley

Answer 1

Answer:

Answer: The minimum input force she'll need to lift the ball is 35 N. Explanation: Mechanical advantage of a single pulley is 1.