Physics, 10.01.2020 06:31 naynay1997
Aball of mass 4.5 kg moving with speed of 2.2 m/s in the +x-direction hits a wall and bounces back with the same speed in the x direction. what is the change of the momentum of the ball?
Answers: 2
(1)with 
the initial momentum and 
the final momentum. Linear momentum is defined as 
, using that on (1):
(2)
and 
so (2) becomes:
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Aball of mass 4.5 kg moving with speed of 2.2 m/s in the +x-direction hits a wall and bounces back w...
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