bus moving with a velocity of 60 km h-1 is brought to rest in 20 seconds by applying brake find acceleration. i am i pakistani you know you nihu
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Answers
Answer:
Step-by-step explanation:
initial velocity = 60km/hr
= 60×1000÷3600
=16.6m/s
final velocity = 0
Time = 20seconds
acceleration= final velocity - initial velocity ÷ time
= 0-16.6 ÷ 20
= -16.6 ÷ 20
= - 0.83 m/s ^2
A bus moving with a velocity of 60 km/h is brought to rest in 20 seconds by applying brake find acceleration ?
Initial Velocity ( u ) = 60 Km/h
Final Velocity ( v ) = 0 m/s ( At rest )
Time taken ( t ) = 20 s
Acceleration of bus ( a ) .
- Acceleration
Acceleration is the rate at which velocity changes with time . Acceleration can be negative , positive or zero . Negative acceleration is called retardation .
- Initial Velocity
Initial velocity is the velocity of the object before the effect of acceleration .
- Final Velocity
Final velocity is the velocity of the object after the effect of acceleration .