A bus running at a speed of 18km/h is stopped in 2.5 seconds by applying brakes. Callculate the retardation produced.
Answers
Answered by
2
Answer:
2m/s²
Explanation:
initial velocity = 18 km/h = 18×5/18 m/sec
= 5 m/sec
[ km/h = 5/18 m/sec ]
final velocity = zero
acceleration = change in velocity/time
= ( final velocity - intial velocity)/time
= ( 0 - 5)/2.5 = -2 m/s²
retardation = 2m/s²
Answered by
0
Answer:
retardation = final velocity- initial velocity/ time taken
= 0-18/2.5
-18/2.5.
= -7.2
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