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A cyclist decelerates from 4.6m/s to a stop in .29 minutes. What is the negative acceleration for the cyclist?

1 Answer

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Answer:

a = 0.264 [m/s^2]

Step-by-step explanation:

We can find the deceleration value using the following formula of kinematics:


v_(f) =v_(o) - (a*t)

The final speed is taken as zero as the rider stops completely and the acceleration sign in the equation is taken as negative as the rider is slowing down.

Vf = final velocity = 0

Vo = initial velocity = 4.6 [m/s]

t = time = 0.29 [min] = 0.29*60 = 17.4 [s]

0 = 4.6 - (a*17.4)

-4.6 = - 17.4*a

a = 0.264 [m/s^2]

User Michal Holub
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