Asked by Thomas Asiedu

How long does it take a car to change it velocity from 15m/s if it accelerarate uniformly at 5m/s square?
Answered by M, S, E
As far as I understand the car gets 5m/s faster with every second. The first second it's traveling at 5m/s. It increases by 5m/s again at the 2nd second. It is now traveling 10m/s. By the third second it increases again by 5m/s.
Answered by bobpursley
vfinal=vinitial+at
you have given vinitial, acceleration. You want the time t. So what final velocity are you aiming for, vfinal?
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