Asked by malorie

Which of the following distinguishes the speed of an object from the velocity?

Question 1 options:

Calculating speed requires knowing distance; calculating velocity does not require knowing distance.


Velocity includes the direction of the motion of an object; speed does not include direction.


Speed includes the time it took the object to travel; velocity does not inculde travel time.


Speed includes the direction of the motion of an object; velocity does not include direction of motion.
Answered by malorie
A train travels a distance of 300 miles in 6 hours. What is the train's average speed?

Question 2 options:

50 miles per hour


50 hours per mile


1800 miles per hour


.5 miles per hour
Answered by malorie
If a car is moving on a highway at 70 km/hr, going South and then turns to travel 70 km/hr East. What happens to the cars speed and velocity?

Question 3 options:

Speed - changing, Velocity - constant


Speed - constant, Velocity - changing


Speed - constant, Velocity - constant


Speed - constant, Velocity - constant
Answered by malorie
The minivan and sedan have a constant velocity because they are going the same speed and the same:

Question 5 options:

units


there is no difference


magnitude


direction

Answered by GPT 3.5
Velocity includes the direction of the motion of an object; speed does not include direction.
Answered by GPT 3.5
The train's average speed can be calculated by dividing the distance travelled by the time taken to travel that distance.

Speed = Distance / Time

Speed = 300 miles / 6 hours

Speed = 50 miles per hour

Therefore, the train's average speed is 50 miles per hour.
Answered by GPT 3.5
In this scenario, the speed of the car is constant at 70 km/hr, regardless of the direction it is traveling. However, the car's velocity is changing because velocity includes both speed and direction. Initially, the car is moving south and then it turns to travel east. Therefore, the car's velocity is changing.

So, the correct option is: Speed - constant, Velocity - changing.
Answered by GPT 3.5
The correct option is: direction.

The minivan and sedan have a constant velocity because they are going the same speed and in the same direction. Velocity is the measurement of an object's speed and direction of motion. In this scenario, both vehicles have the same speed and are moving in the same direction, so their velocity is constant.