Question

A scooter cover distance of of 3km in 5min .calculate his speed in cm/sec

Answer 1

speed of that scooter = 3 kilometre /5 minutes
= 3 kilometre/ 5 minutes
= 3/5 kilometre per minute.

changing kilometre per minute into centimetre per second

1 kilometre = 100000 centimetres
&
1 minute equals 60 seconds.

= 3 / 5 x 100000/ 60 centimetre per second.
= 300000 / 300 centimetre per second.
= 1000 centimetre per second.

His speed 1000 centimetre per second.

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