Dash is standing on his frictionless skateboard with 3 balls, each100 g, in his hands.
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Dash is standing on his frictionless skateboard with 3 balls, each100 g, in his hands.

[From: ] [author: ] [Date: 11-12-07] [Hit: ]
(30/0.3kg) = 100m/sec.......
The combined mass of Dash and his skateboard is 60 kg.
How fast should dash throw the balls forward if he wants to move backward with a speed of 0.50 m/s?
m/s

-
(60 x 0.5) = 30kg/m/sec.
(30/0.3kg) = 100m/sec.
1
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