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    				| 1. | The unit of force in SI system is newton (N) and in CGS system is dyne. One newton is equal to 1 kg m `s^(-2)` and 1 dyne is equal to 1 g cm `s^(-2)`. How many dynes make one newton? | 
| Answer» Given that: 1 N = 1 kg m `s^(-2)` 1 dyne = 1 g cm `s^(-2)` But 1 kg = 1000 g and 1 m = 100 cm `therefore` 1 N = 1 kg m `s^(-2)` = (1 kg) (1 m `s^(-2)`) `((1 kg)(1 m))/((1 s^(2))) = ((1000 g)(100 cm))/((1 s^(2))) = 10^(5) g cm s^(-2) = 10^(5)` dyne. | |