Question

You are marooned on a frictionless horizontal surface and cannot exert any horizontal force by pushing against the surface. How can you get off ?

• A. by jumping
• B. by spitting or sneezing
• C. by rolling your body on the surface
• D. by running on the plane

Answer 1

The correct option is B by spitting or sneezing

By spitting or sneezing we can get off.

Since there is no friction present we need to spit or sneeze which will produce a suitable friction to get off. Also this will produce a momentum in opposite direction which will help us to move in opposite direcdtion.