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Starting from a stationary position Rony paddles his bicycle to attain the velocity of 8ms-¹ in 30 s.Than he applies brakes such that the velocity of the bicycle comes down to 4m s-¹ in the next 5 s. Calculate the acceleration of bicycle in both cases.
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➻Rony paddles his bicycle to attain the velocity of 8ms-¹ in 30seconds.
➻After applying the brakes the velocity of the bicycle comes down to 4m s-¹ in the next 5 s.
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➻The acceleration of bicycle in both cases.
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➻As Rony is starting from a stationary position, intial Velocity of the bicycle is considered to be zero,here in case-1.
➻Supplanting the given values,
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➻As the bicycle already attained the velocity of 8ms-¹ ,it is considered to be initial velocity here in case 2
➻Supplanting the given values,
➻Since the bicycle is slowing down, acceleration is indicated by "-ve" sign.
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➻The acceleration of bicycle in both cases is
respectively.
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Answer:
I AM BIPASHA FROM JHARKHAND CLASS 8 AGE 14.
HOBBY = DRAWING, DANCE AND SINGING.
DREAMS = ACTRESSES.
YOUR INTRO❓❓