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a child is stuck on a frictionless horizontal surface and cant exert any horizontal force by pushing against the surface. how can he get off?by runningby rollingby jumping by spitting or coughing

a child is stuck on a frictionless horizontal surface and cant exert any horizontal force by pushing against the surface. how can he get off?by runningby rollingby jumping by spitting or coughing

Grade:10

1 Answers

Sourabh Singh IIT Patna
askIITians Faculty 2104 Points
7 years ago
Hii

As friction is not there he can’t either jump or roll. So the only thing that will help him is conservation of momentum of the system . He must throw something in the direction opposite to the one in which he wants to go.

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