Marsha goes cliff jumping. She has a mass of 72 kilograms and is accelerating at almost 10 m/s². What is the Force she experiences when she hits the water?

Question

Quizplus · Accepted Answer

The formula to find the required force is force = mass in kg × acceleration in m/s². F=ma F = 72 kg x 10 m/s² F = 720 N She exerts of force on the water of 720 N down and because of Newton's Third Law (The mutual forces of action and reaction between two bodies are equal, opposite and collinear), she also experiences a force of 720 N up. The force is up because her acceleration is upward. This is why she slows down when she hits the water.

Marsha Goes Cliff Jumping