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What is the acceleration of a bike that's goes from 38km/hr to a stop in 4.5 s?

User Aadel
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7.4k points

2 Answers

6 votes

a = 38 / 4.5

a = 8.5

User Ishan Dutta
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7.9k points
6 votes

Answer:

The acceleration of a bike is 2.34 m/s².

Step-by-step explanation:

Given that,

Velocity = 38 km/hr

Time = 4.5 s

We need to calculate the acceleration

Using equation of motion


v = u+at


a=(v-u)/(t)

Where, v = final velocity

u = initial velocity

t = time

Put the value in to the formula


a=(0-38*(5)/(18))/(4.5)


a=-2.34\ m/s^2

Negative sign shows the deceleration.

Hence, The acceleration of a bike is 2.34 m/s².

User Clement Levesque
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8.3k points