How long does it take a car to change it velocity from 15m/s if it accelerarate uniformly at 5m/s square?
2 answers
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.
vfinal=vinitial+at
you have given vinitial, acceleration. You want the time t. So what final velocity are you aiming for, vfinal?
you have given vinitial, acceleration. You want the time t. So what final velocity are you aiming for, vfinal?
2 answers