How Does the Distance Traveled by the Truck Compare to That of the Car?

[sarah111]

On a straight road, a car speeds up at a constant rate from rest to 20 m/s over a 5 second interval and a truck slows at a constant rate from 20 m/s to a complete stop over a 10 second interval. How does the distance traveled by the truck compare to that of the car?

 

[SammyS]

On a straight road, a car speeds up at a constant rate from rest to 20 m/s over a 5 second interval and a truck slows at a constant rate from 20 m/s to a complete stop over a 10 second interval. How does the distance traveled by the truck compare to that of the car?

Hello sarah111. Welcome to PF !

What have you tried?

Where are you stuck?


You should show some work before anyone gives help.

... but, here's a hint:

What is the average velocity of each vehicle?​

 

[sarah111]

I feel like I can't answer the question because i don't know what the accceleration is. I tried using the equation for speed and found that the car stop 100m and the truck 200 but i don't feel that is right

 

[azizlwl]

On a straight road, a car speeds up at a constant rate from rest to 20 m/s over a 5 second interval and a truck slows at a constant rate from 20 m/s to a complete stop over a 10 second interval. How does the distance traveled by the truck compare to that of the car?

Sketch a velocity vs. time graph.
The car starts from rest and constantly increasing the speed until finally attained 20m/s after 5 secs.
The truck starts from 20m/s and constantly reducing the speed till zero.
Distance traveled is - velocity x time

 

[SammyS]

sarah,

What equations do you know regarding constant acceleration?