boy of mass 50kg is standing on a frictionless surface. He throws a ball of mass 2kg away from him with a speed of 10m/s. Find the final speed of the centre of mass. a) 0m/s b) 20m/s c) 10m/s d) 0.4m/s
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boy of mass 50kg is standing on a frictionless surface. He throws a ball of mass 2kg away from him with a speed of 10m/s. Find the final speed of the centre of mass.
a) 0m/s
b) 20m/s
c) 10m/s
d) 0.4m/s
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