anoynomouskali9079 anoynomouskali9079
  • 22-08-2022
  • Physics
contestada

With an average acceleration of 1.2 m/s^2, how long will it take a cyclist to bring a bicycle with an initial speed of 6.5 m/s to a complete stop

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jsimpson11000 jsimpson11000
  • 22-08-2022

Answer:

13 sec   <===== see assumption below

Explanation:

If the cyclist is ACCELERATING at 1.2 m/s^2 ....it will not stop.

If the acceleration is - 1.2 m/s^2 , then:

vf = vo + a t

vf = final velocity = 0        vo = original v = 6.5m/s       a = - 1.2 m/s^2

0 = 6.5 - 1/2 t           then t = 13 sec

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