a car is initially moving with the speed of 30 metre per second it comes to rest in 3 seconds after applying brakes calculate the acceleration and distance covered by the car in 3 second
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given
initial velocity=30
v=0
t=3
a=v-u/t
a=0-30/3
a=-10
now
v2=u2+2as
so
(0)2=(30)2-2×(-10)×s
0=900-20s
20s=900
s=45m
initial velocity=30
v=0
t=3
a=v-u/t
a=0-30/3
a=-10
now
v2=u2+2as
so
(0)2=(30)2-2×(-10)×s
0=900-20s
20s=900
s=45m
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