There will be a recoil velocity V such that the total momentum remains zero. Ball and machine momenta are equal and opposite.
V*60 = 43*.053
V = 0.038 m/s = 3.8 cm/s
A tennis player places a 60 kg ball machine
on a frictionless surface. The machine fires a
0.053 kg tennis ball horizontally with a velocity of 43 m/s toward the north.
What is the final velocity of the machine?
Answer in units of m/s
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