# Solving deceleration problem using calculus?

This is very easy to do with physics equations but i have to do this using calculus.
At a distance of 45m from a traffic light, a car travelling 15 m/sec is brought to a stop at a constant deceleration
What is the value of deceleration?
how far has the car moved when its speed has been reduced to 3 m/sec?
How...
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This is very easy to do with physics equations but i have to do this using calculus.

At a distance of 45m from a traffic light, a car travelling 15 m/sec is brought to a stop at a constant deceleration

What is the value of deceleration?

how far has the car moved when its speed has been reduced to 3 m/sec?

How many seconds would the car take to come to a full stop?

At a distance of 45m from a traffic light, a car travelling 15 m/sec is brought to a stop at a constant deceleration

What is the value of deceleration?

how far has the car moved when its speed has been reduced to 3 m/sec?

How many seconds would the car take to come to a full stop?

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