A car moving along a straight highway with speed of 126 km h–1
is brought to a stop within a
distance of 200 m. What is the retardation of the car (assumed uniform), and how long does it take
for the car to stop ?
Answers
Answered by
0
Explanation:
v2 -u2 = 2as
0 - 126×5/18 = 2a×200
-35 = 400a
-35/400 =a = -7/80 metre /sec2
Answered by
0
Explanation:
The distnace can be measured by measuring the parallax angle θ. It is subtended by the distant astronomical object at the two locations on the earth separated distance b. Thus, θ= d/b
where d be the measuring distance.
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