Finding the Force on a Ball from a Dent (10:24)
We use the Work Energy Theorem to solve the following … A 67 N ball is dropped from a height of 79.8 cm above a bag of sand. If the ball makes a 9.0 mm deep dent in the sand, what is the average force the sand applies on the ball during the collision? This is an AP Physics 1 and AP Physics C: Mechanics topic.
0:00 The problem
0:58 One Problem Solving Strategy
1:42 Using the Work Energy Theorem
5:06 Which work equation do we use?
7:08 Several Mistakes We Made
8:57 Why is the force applied so large?