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1.At a speed of 12 m/sec how far can you travel in one minute? 12 m 72 m 60 m 72

ID: 1575031 • Letter: 1

Question

1.At a speed of 12 m/sec how far can you travel in one minute?

12 m

72 m

60 m

720 m

2.

Under what conditions are the values of average speed and the magnitude of the average velocity equal?

When moving in a straight line

When moving in a straight line and not turning around

When moving in a circular path

When walking around the perimeter of a rectangle

3.

You walk in a given direction for 20 m during the first 5 seconds of a trip and then 15 m during the next 2 seconds. Your average speed is equal to

8 m/s

2 m/s

5 m/s

–5 m/s

Explanation / Answer

1)

speed = 12 m/s

time = 1 min = 60 s

use:

distance = speed * time

= 12 m/s * 60 s

= 720 m

Answer: 720 m

2)

average velocity and average speed is same when displacement and distance are same

This is possible When moving in a straight line and not turning around

Answer: When moving in a straight line and not turning around

3)

total distance= 20 m + 15 m = 35 m

time = 5 s + 2 s = 7s

use:

average speed = distance / time

= 35 m / 7 s

= 5 m/s

Answer: 5 m/s