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ki77a [65]
3 years ago
6

What is the deceleration of a bicycle that goes from 40m/s to 20m/s in 5 seconds

Physics
1 answer:
Alex Ar [27]3 years ago
5 0

Answer:

-4 m/s^2

Explanation:

The acceleration of the bycicle is given by:

a=\frac{v-u}{t}

where

v = 20 m/s is the final velocity of the bike

u = 40 m/s is the initial velocity

t = 5 s is the time interval

Substituting numbers, we find

a=\frac{20 m/s-40 m/s}{5s}=-4 m/s^2

and the acceleration is negative, which means that the bycicle is slowing down.

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A train has a final velocity of 110 km/h. It accelerated for 36 s at 0.50 m/s2 . What was its initial velocity
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<h3>Initial velocity</h3>

The initial velocity of the train can be determined by using the first kinematic equation as shown below;

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Learn more about initial velocity here: brainly.com/question/19365526

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