A runner\'s average speed is 4.5 mph, how far could he run in 3 hours? Select on

ID: 1417096 • Letter: A

Question

A runner's average speed is 4.5 mph, how far could he run in 3 hours?

Select one:

a. 12 miles

b. 12.5 miles

c. 18 miles

d. 13.5 miles

e. none of above

How many hour are required to make a 3000 km trip if your average speed is 50 km/h?

Select one:

a. 40 h

b. 45 h

c. 50 h

d. 100 h

e. none of above

Which of the following could be a velocity?

Select one:

a. 5 m west

b. 10 m/s west

c. 100 m/s

d. 60 mph

e. none of above

A runner's speed is 6 mph due south, the wind's speed is 2 mph due north, the displacement in 2 hours is _________

Select one:

a. 18 miles

b. 16 miles due south

c. 8 miles due south

d. 24 miles due north

e. none of above

An object is accelerating

Select one:

a. Only when its speed changes

b. Only when its direction changes

c. When its speed or direction changes

d. when the distance changes

e. none of above

Distance covered,d = speed * time = 4.5 * 3 = 13.5 miles
D.

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