Obtain how fast is dan going as his feet hit the ground

Reference no: EM13681357

Dan is gliding on his skateboard at 4.00 meter per second. He suddenly jumps backward off the skateboard, kicking the skateboard forward at 8 m/s (as measured by an observer on the ground). Dan's mass is 70 kilogram and the skateboard's mass is 4 kilogram.

Obtain how fast is Dan going as his feet hit the ground?

Reference no: EM13681357

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