Physics, 18.02.2021 23:30 kaytlynnmeyer
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A 65-kg male ice skater is facing a 45-kg female ice skater. They are at rest on the ice. They push off each other and move in opposite directions. The female skater moves backwards with a speed of 3 m/s. Determine the post-impulse speed of the male skater.
A 50-gram tennis ball is loaded into a 2-kg homemade cannon. The cannon is at rest when it is ignited. Immediately after the impulse of the explosion, a photogate timer measures the cannon to recoil backwards a distance of 6 cm in 0.02 seconds. Determine the post-explosion speed of the cannon and of the tennis ball (watch your units!!!)
Post-explosion speed of the cannon:
Post-explosion speed of the tennis ball:
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