1.

If there is no reaction force, which of the following cases will occur?   (i) We will not be able to swim. (ii) We will not be able to jump.           (iii) We will not be able to walk.

A. (i) only                        
B. (ii) only
C. (iii) only                      
D. (i), (ii) and (iii)
Answer» E.


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