a dog weighing 20 kg is in a wagon moving at 3 m/sec on a frictionless...
a dog weighing 20 kg is in a wagon moving at 3 m/sec on a frictionless surface. a 10 kg pet monkey jumps straight down from a ledge onto the. dogs back for a free ride. what is the velocity of the duo after the monkey lands on the dogs back
Homework Answers
initial momentum = m*v = 20*3 = 60 kgm/sec
after monkey jumps total mass = 20 + 10 = 30
Initial momentum = final momentum
60 = 30*v
v = 2 m/s
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