Math, asked by raja5949, 4 months ago

A car covers a certain distance at a rate 72 km/hr. Calculate the time in seconds, required by the car
to cover a distance of 2200 metres.
If 75 m of a copper wire costs 2250, what is the length of a copper wire that can be purchased for​

Answers

Answered by brainmaster2007
0

Answer:

conversion of km per hour to metre per second is to multiply it by 5/18

therefore 72×5/18= 20m/s

Then speed = distance/time

time= distance/speed

time= 2200/20

time=110s

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