Question

A family took a trip in a car traveling East from Greensboro to Wilmington, NC. Use the Graph to answer the questions below.

1: Calculate the average speed of the trip.

2: What was the average velocity of the car?

Note: Please don't put weird stuff or completely off-topic stuff, I really need help for this homework! Thanks!

Answer 1

1). Average speed = 1.5 m per second

2). Average velocity = 1.5 m per second

Step-by-step explanation:

1). Since, speed is a scalar quantity

Therefore, average speed of the trip =
`\frac{\text{Total distance covered}}{\text{Total time taken}}`

From the graph attached,

Total distance covered = 10 + 10 + 20 + 0 + 20 + 30

= 90 meters

Total time taken = 60 seconds

Average speed =
`(90)/(60)`

= 1.5 meter per second

2). Velocity is a vector quantity.

Therefore, average velocity =
`(\triangle d)/(\triangle t)`

=
`(d_(60)-d_0)/(60-0)`

=
`(90-0)/(60-0)`

= 1.5 meter per second