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March 18th, 2017, 11:11 PM   #1
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algebra Math/science

I've done 3 and 4 just want a clarification that it's right.

Q3) Maxim, of mass 70kg, is running at 3.5ms-1 when he jumps on a skateboard, of mass 2.2kg, travelling at 0.8 ms-1 in the same direction.

i. Calculate their new combined velocity.

Q4) Maxim is on his skateboard again travelling at 6ms-1 in the opposite direction to which his hat is pointed. He then leaps off the skateboard. If the skateboard’s velocity after the leap was -0.5ms-1,

find Maxim’s velocity post leap. (Mass of skateboard = 3kg, mass of Mr VT = 70kg).


I need help with this question:

Q5) Maxim is on his skateboard again, travelling at 4ms-1 to the right. He then leaps off the skateboard. If the distance between Maxim and the skateboard was increasing at a rate of 4 metres per second, find Maxim’s velocity post leap. (Mass of skateboard = 3kg, mass of Mr vT = 70kg).

(There are two solutions to this problem, explain what both mean in this situation).

Last edited by skipjack; March 18th, 2017 at 11:26 PM.
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March 19th, 2017, 05:07 AM   #2
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duplicate posting ...

conservation of momentum
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