Question

Numerical:
1.
(a) A cyclist traveling at a uniform speed covers a distance of 9 km in 30 min. Find the speed of
the cyclist in m/s.
​

Answer 1

Answer:

Distance travelled by cyclist (s) = 9 km

Time taken to cover the distance (t) = 30 minutes, i.e., 1/2 hour

Now,

speed = distance/time

==> v = 9/½

==> v = 9 × 2/1

==> v = 18 km/h

Hence, speed of cyclist in km/h is 18 km/h.

Now, speed in m/s

= 18 × 1000/60 × 60

= 18000/3600

= 5 m/s.

Explanation:

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