using the scale 1.0 cm =50 km, find the length of the vector that represents each displacement.

1. Displacement 100 km east

2. Displacement 140 km at 45^o east of south

3. Displacement 315 km at 65^o north of east

Using the scale 1/4 in. = 20 mi, find the length of the vector that represents each displacement.

1. Displacement 100 mi west

2. Displacement 210 mi at 45^o south of west.

3. Displacement 75 mi at 25^o west of north.

Find the average speed (in the given units) of an auto that travels each distance in the given time.

1. 150 mi in 3.0 h (in mi/h)

2. 8550 m in 6 min 35 s (in m/s)

3. 785 ft in 11.5 s (in ft/s)

4. While driving at 90km/h, how far can you travel in 3.5 h?

5. The average speed of a garbage truck is 60.0 km/h. How long does it take for the truck to travel 265 km?