A bus is moving at a velocity of 60kmph.it is brought to rest in 20 sec by applying brakes find its acceleration
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here, u=60km/hr =60×1000/60×60 = 50/3 m/s =16.66m/s
v=u+at
0=16.66+20a
-16.66=20a
a= -.833m/s^2
hence it's deaccleration is .833m/s^2
v=u+at
0=16.66+20a
-16.66=20a
a= -.833m/s^2
hence it's deaccleration is .833m/s^2
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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 .
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