Posted by Dorothy on Thursday, February 7, 2008 at 6:11pm.
A 62kg boy on a 1.50kg skateboard moving at +1.2 m/s steps off and lands on the sidewalk with a velocity of +1.1 m/s. How fast is the skateboard moving?

physics  bree, Monday, February 13, 2017 at 7:52am
6.1
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