Motion in one direction

In summary, the conversation is about the distance traveled by a car and a truck on a straight road, where the car speeds up at a constant rate from rest to 20 m/s over a 5 second interval and the truck slows down at a constant rate from 20 m/s to a complete stop over a 10 second interval. The question is how does the distance traveled by the truck compare to that of the car? The hint given is to find the average velocity of each vehicle and to sketch a velocity vs. time graph. The equation used to solve the problem is distance = velocity x time.
  • #1
sarah111
2
0
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?
 
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  • #2
sarah111 said:
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?​
 
  • #3
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
 
  • #4
sarah111 said:
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
 
  • #5
sarah,

What equations do you know regarding constant acceleration?
 

1. What is motion in one direction?

Motion in one direction refers to the movement of an object or body in a straight line, without changing direction. This type of motion is also known as linear motion.

2. What are some examples of motion in one direction?

Examples of motion in one direction include a car moving on a straight road, a ball rolling down a hill, and a person walking in a straight line.

3. What factors affect the speed of motion in one direction?

The speed of motion in one direction can be affected by factors such as the force applied, the mass of the object, and the presence of any friction or resistance.

4. How is motion in one direction measured?

Motion in one direction is commonly measured using units of distance and time, such as meters per second (m/s) or kilometers per hour (km/h). Acceleration, which is the rate of change in speed, is also measured in units of distance per time squared, such as meters per second squared (m/s²).

5. What is the difference between speed and velocity in one direction?

Speed refers to the rate at which an object is moving, while velocity also takes into account the direction of motion. Therefore, an object moving in one direction at a constant speed has a constant velocity, but an object that changes direction while moving will have a changing velocity.

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