Speed and velocity

A man walks 7 km in 2 hours and 2 km in 1 hour in the same direction. a) What is the man's average speed for the whole journey? b) What is the man's average velocity for the whole journey?

• a) 3Km/h & b) 3Km/h

• a) -3km/h & b) 3km/h

• a) 6Km/h & b) 3Km/h

• a) -6Km/h & b) 6Km/h

A man walks 7 km East in 2 hours and then 2.5 km West in 1 hour. a) What is the man's average speed for the whole journey? b) What is the man's average velocity for the whole journey?

• a) 3.2 km/h & b) 1.5 km/h

• a) -3,2 km/h & b) -1,5 Km/h

• a) 2,3km/h & b) 5,1 km/h

• a) -2,3 km/h & b) -5,1Km/h

John drove South 120 km at 60 km/h and then East 150 km at 50 km/h. Determine a) the average speed for the whole journey? b) the magnitude of the average velocity for the whole journey?

• a) 54 km/h & b) 38,4km/h

• a) -54 km/h & b) -38,4km/h

• a) 38,4km/h & b) 54 km/h

• a) -38,4km/h & b) -54 km/h

What is my average velocity when it takes me 2 minutes to ride my bicycle all the way around a circular track with a radius of 65 meters? Express your answer using the proper SI units. Round your answer to two decimal places, and

include a direction if necessary.

• 0 m/s

• 20 m/s

• -2m/s

• -0 m/s

What is Otter’s average speed over his entire trip when it takes him 2 minutes to walk 100 meters north and another 1 minute to walk 70 meters south? Express your answer using the proper SI units. Round your answer to two decimal places, and include a direction if necessary.

• 0,94 m/s

• 0,62m/s

• 0,57m/s

• 0 m/s

What is Otter’s average velocity over his entire trip when it takes him 2 minutes to walk 100 meters north and another 1 minute to walk 70 meters south? Express your answer using the proper SI units. Round your answer to two decimal places, and include a direction if necessary.

• 0,17 m/s N

• 0,17 m/s S

• 0,17 m/s NE

What is Otter’s average velocity over his entire trip when it takes him 2 minutes to walk 100 meters north and another 1 minute to walk 70 meters to the west? Express your answer using the proper SI units. Round our answer to two

decimal places, and include a direction if necessary.

• 0,68 m/s NW

• 0,68 Km/h NW

• 0,68 m/s SE