Math, asked by sizuka111, 1 year ago

the speed of bus a increases from 25 km/h to 70km/h in 5sec. find the mean accelerated of the bus.

Answers

Answered by Kajalahuja76418

Time given 5 sec
Initial velocity is 25 km /h
Final velocity is 70 km /h
Let's convert them in m/s
In first case
25*5/18=6.944
In second case
70*5/18=19.44
We know a= v-u/t
a=19.44m/s-6.94m/s/time
a=12.5/5=2.5m/s square
Hope it will help you

Kajalahuja76418: Mark it brainliest

sizuka111: why you've multipled it by 5/18?

Kajalahuja76418: Because we have to convert it from km/h to m/s therefore the units will be 1000/3600=5/18 do you get it

sizuka111: yep thanks

Kajalahuja76418: U are welcome

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