PhysicsA car travels a distance of 360 km in 5 hours. What is the speed in m/s?

A car travels a distance of $360 km$ in $5$ hours. What is the speed in $m / s$ ?

A
$40 m / s$
B
$30 m / s$
C
$10 m / s$
D
$20 m / s$

Solution:

A car travels a distance of

360 km

in

5

hours. The speed of the car is

20 m / s

.
Given,
Distance

= 360 km

Time

= 5 hr

Speed

= ?

We know,

speed = \frac{distance}{time}

= \frac{360}{5}

= 72 km / hr

Now, convert in

m / s

:

1 km = 1000 m

1 hr = 3600 \sec

Then,

72 km / hr = \frac{72000 m}{3600 s}

= 20 m / s

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