a car starts with initial velocity of 30 m/sec after time 15 sec the car driver applied breaks and finally car comes to rest then find total distance travelled by the car
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Given that,
V = 0 m/s
U = 30m/s
t = 15s.
By 3rd equation of motion,
v^2-u^2 = 2as.............(1)
a = (v-u)/t
= (0-30) / 15
a = -2 m/s^2..........(2)
Substituting (2) and other values in (1),
(0)^2 - (30)^2 = 2(-2)(s)
-900 = - 4s
s = - 900/-4
s= 225m
V = 0 m/s
U = 30m/s
t = 15s.
By 3rd equation of motion,
v^2-u^2 = 2as.............(1)
a = (v-u)/t
= (0-30) / 15
a = -2 m/s^2..........(2)
Substituting (2) and other values in (1),
(0)^2 - (30)^2 = 2(-2)(s)
-900 = - 4s
s = - 900/-4
s= 225m
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