Dan is gliding on his skateboard at 2.36 m/s . He suddenly jumps backward off the...
Dan is gliding on his skateboard at 2.36 m/s . He suddenly jumps backward off the skateboard, kicking the skateboard forward at 8.02 m/s (as measured by an observer on the ground). Dan's mass is 60.1 kg and the skateboard's mass is 4.79 kg . If the jump requires 0.122 s to complete, what average force did the skateboard exert on dan?
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Dan is gliding on his skateboard at 2.36 m/s . He suddenly jumps
backward off the...
Dan is gliding on his skateboard at 2.00 m/s . He suddenly jumps backward off the...
Dan is gliding on his skateboard at 2.00 m/s . He suddenly jumps backward off the skateboard, kicking the skateboard forward at 6.00 m/s . Dan's mass is 70.0 kg and the skateboard's mass is 6.00 kg . How fast is Dan going as his feet hit the ground?
6) Jack accelerates a 7.2 m/s. He jumps with a vertical velocity of 6.8 m/s. There...
6) Jack accelerates a 7.2 m/s. He jumps with a vertical velocity of 6.8 m/s. There is a 5.7 m hole he is trying to jump over. Jack has a mass of 62 kg. a. What is the minimum horizontal velocity Jack has to be traveling at to clear the hole? b. How much of a run-up does Jack need to achieve this? c. How much force, in a horizontal direction, does Jack exert to produce his acceleration?
6) Jack accelerates a 7.2 m/s. He jumps with a vertical velocity of 6.8 m/s. There is a 5.7 m hole he is trying to jump over. Jack has a mass of 62 kg. a. What is the minimum horizontal velocity Jack has to be traveling at to clear the hole? b. How much of a run-up does Jack need to achieve this? c. How much force, in a horizontal direction, does Jack exert to produce his acceleration?
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