A car moving along a straight highway with
speed of 126Kmh is brought to a stop with
in a distance of 200m. what is the retardation
of the car
Answers
Answered by
11
A car moving along a straight highway with
speed of 126Kmh is brought to a stop with
in a distance of 200m. what is the retardation
of the car ?
ANSWER
Given
☣ u = 126 km/hr
= 126 X 5/18
= 35 m/s //
☣. When car is at rest we know that it's velocity V = 0
Distance S = 200 m
Acceleration a =?
Time t = ?
☣APPLYING THE EQUATION OF MOTION ☣
V² = u²- 2as
a = v² - u² / 2s
a = 0 - (35)² / 2 X 200
= -35 X 35 / 400 ( by calculating you will get the answer as )
= -49/ 16
= -3.06
Here the -Ve sign represent the retardation
The retardation of the car is -3.06 //
Similar questions