The trick to skipping a rock is throwing it at a low angle. This is because the surface tension of the water can only provide so much force, beyond which the rock goes into the water instead of bouncing off its surface. You throw a rock of mass m = 0.05 kg with a speed of vo = 20 m/s. The surface tension of the water can provide a maximum force of F5 N. The collision of the rock with the water lasts At = 0.1s. Assume it bounces off the water at the same angle and speed it collided with. Find the maximum angle (measured from horizontal) at which you can throw the rock and still have it skip off the surface. You can ignore gravity.
The trick to skipping a rock is throwing it at a low angle. This is because the surface tension of the water can only provide so much force, beyond which the rock goes into the water instead of bouncing off its surface. You throw a rock of mass m = 0.05 kg with a speed of vo = 20 m/s. The surface tension of the water can provide a maximum force of F5 N. The collision of the rock with the water lasts At = 0.1s. Assume it bounces off the water at the same angle and speed it collided with. Find the maximum angle (measured from horizontal) at which you can throw the rock and still have it skip off the surface. You can ignore gravity.
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter8: Momentum And Collisions
Section: Chapter Questions
Problem 47P: A model rocket engine has an average thrust of 5.26 N. It has an initial mass of 25.5 g, which...
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