MCQOPTIONS
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				| 1. | 
                                    A body of mass 2 kg collides with a wall with speed 100 m/s and rebounds with the same speed. If the time of contact was 1/50 s, the force exerted on the wall is: | 
                            
| A. | 8 N | 
| B. | \[\text{2}\times \text{1}{{0}^{\text{4}}}\text{ N}\] | 
| C. | (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii) | 
| D. | \[{{10}^{4}}\,N\] | 
| Answer» C. (a)-(ii), (b)-(i), (c)-(iv), (d)-(iii) | |