A car travels with a speed $$12 \ m s^{-1}$$, while a scooter travels with a speed $$36 \ km h^{-1}$$. Which of the two travels faster ?
Speed of car = $$ 12 \ m s^{-1} $$
Speed of scooter = $$ 36 \ km h^{-1} $$
Since, $$ 1 \ km = 1000 \ m$$
and, $$1 \ hr = 3600 \ sec$$
$$ \therefore $$ Speed of scooter = $$36 \ km/hr = \dfrac{36\times 1000}{3600} \ m/s$$ = $$ 10 \ ms^{-1} $$
Hence, the car travels faster than the scooter.