Dan's Momentum Change: 4m/s to Ground Zero

AI Thread Summary
Dan is gliding on his skateboard at 4 m/s when he jumps backward, propelling the skateboard forward at 8 m/s. To find Dan's speed as he hits the ground, momentum conservation principles can be applied. The total momentum before and after the jump must remain constant, considering both Dan's and the skateboard's masses. The discussion emphasizes the importance of understanding momentum equations to solve the problem effectively. This scenario illustrates the application of physics concepts in real-life situations.
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Homework Statement


dan is gliding on his sb at 4m/s. he suddenly jumps backward off his sb, kicking the sb foward at 8m/s. how fast is dan going as his feet hit the ground? dan's mass is 50kg and the sb's mass is 5kg


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