Question

Physics
Augment
of Convent (a) 36 km/hr to m/s
m/sto km/
BZ A boy des down from the house to his school at a speed of 18 km/hr and reach
mere i 20 minutes. How far is the shoot from his houser
A man cover a total distance of 750 km in his car with an average speed of 50
km/h. How far as the school from his house?
4. A body coves a distance of 20 km in 20 minutes Calculate its speed in km/h​

Answer 1

Answer:

36\: km/hr

=10m/sec

Explanation:

V = 36\: km/hr

=36 \times  1000m/60 minutes  

/* i)1km = 1000 m  

i)1km = 1000 m ii ) 1hour = 60 minutes */

= 36\times 1000m/(60 \times 60 seconds)

/*1minute=60seconds */

=  \frac{36000}{3600}m/sec

After cancellation,weget

=10m/sec

Therefore,

36\: km/hr=10m}/sec

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