starting from A stationary position Rahul pedal cycle to attend a velocity of 6 metre per second to the power minus 1 in 30 seconds then he applies brakes of that the velocity of the bicycle comes down to 4 metre per second in the next five second calculate the acceleration of bicycle in the both cases .
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1st case,
We know,
U=0 m/s
V=6m/s
T=30 seconds
Using v=u+at,
We get acceleration as 1/5 or 0.2 m/s squared
Similarly in 2nd case,
V=4m/s
U=6m/s
Time=5sec
We get a=-2/5 m/s squared ... here negative sign shows retardation
We know,
U=0 m/s
V=6m/s
T=30 seconds
Using v=u+at,
We get acceleration as 1/5 or 0.2 m/s squared
Similarly in 2nd case,
V=4m/s
U=6m/s
Time=5sec
We get a=-2/5 m/s squared ... here negative sign shows retardation
Answered by
1
Answer:
a= 2/5 m/s
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