Question

A car starts from rest and Dec was a 2 metre per second square for 10 seconds calculate the final velocity and distance travelled

Answer 1

for final velocity
Vf=Vi+at
vf=0+2(10)
vf=20m/s

for distance travelled
2as=vf2-vi2 (its not vf2 or vi2.its vf nd vi square times)
2(2)s=(20×20)-0
4s=400-0
4s=400
s=400/4s
s=100m
HOPE SO IT WILL BE USEFUL FOR ALL