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Grade: 10

                        

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

4 years ago

Answers : (1)

Sourabh Singh
IIT Patna
askIITians Faculty
2104 Points
							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.
4 years ago
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