Question

A racing car covered $600$km in $3$ hours$20$ minutes.Find its speed in metre per second.How much distance will the car cover in $50$ seconds?

Answer 1

Distance covered$=600$km

Time taken$=3$ hours$20$ minutes

$=3\frac{20}{60}=3\frac{1}{3}=\frac{10}{3}$hrs.

$\therefore$Speed in km.hr$=\frac{Distance}{Time}=\frac{600}{\frac{10}{3}}=\frac{600\times 3}{10}=180$kmph

and speed in m/sec$=\frac{180\times 1000}{60\times 60}=50$m/sec

and Distance covered in $50$ seconds$=spees\times time$

$=50\times 50=2500m=2.50km$