1. A spaceship travels at 810 km/hr. How many metres does it travel in 1/5th of a second?
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By: anil on 05 May 2019 01.46 am
Speed of spaceship = 810 km/hr => Speed in m/s = $$810 imes frac{5}{18}$$ = $$5 imes 45 = 225$$ m/s Thus, in 1 second, it travels 225 metres $$ herefore$$ In $$frac{1}{5}^{th}$$ of a second, it travels = $$frac{225}{5}=45$$ m => Ans - (B)
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