Question

Hey,

A gun of mass 5 kg fires a bullet of mass 20 gram and its cause with a velocity of 0.25 metre per second Find the velocity of the bullet in kilometre per hour.

Explanation needed!!​

Answer 1

0.25 m = 0.00025 km

1 second = $\frac{1}{3600}$ hr

so 0.00025 ÷ $\frac{1}{3600}$ = 0.9 km/hr

So the answer is got by changing metres to kilometres & changing 1 second to hours.

Then simply put it in the way : km/hr