Question

A cyclist covers a distance of 1.5 km in 2.5 minutes calculate his speed m per sec and km per hour

Answer 1

Answer:

Explanation:

distance=1.5 km=1.5*1000=1500 m

time=2.5 min=2.5*60=150 sec

speed=d/t=1500/150=10 m/sec

In km/h

10*18/5=2*18=36 km/hr

Answer 2

The speed of cyclist is 10 m/s or 36.05 km/h.

Explanation:

It is given that,

Distance covered by the cyclist, d = 1.5 km = 1500 m

Time, t = 2.5 minutes = 150 s

Total distance covered by an object divided by total time taken is called its speed. It is given by :

$v=\dfrac{1500\ m}{150\ s}$

v = 10 m/s

Time in hours, t = 0.0416 h

Speed,  $v=\dfrac{1.5\ km}{0.0416\ h}$

v = 36.05 km/h

So, the speed of cyclist is 10 m/s or 36.05 km/h. Hence, this is the required solution.

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