A car travels east at 80 km/h for 3.0 h. It then travels 25.0 east of north at 1

Question

A car travels east at 80 km/h for 3.0 h. It then travels 25.0 east of north at 119 km/h for 3.0 h. (a) What is the average speed for the trip?

km/h

(b) What is the average velocity for the trip?
magnitude 16.21
km/h direction north of east how to find the directionnn A car travels east at 80 km/h for 3.0 h. It then travels 25.0 east of north at 119 km/h for 3.0 h. (a) What is the average speed for the trip?

km/h

(b) What is the average velocity for the trip?
magnitude 16.21
km/h direction north of east how to find the directionnn (a) What is the average speed for the trip?

km/h

(b) What is the average velocity for the trip?
magnitude 16.21
km/h direction north of east how to find the directionnn magnitude 16.21
km/h direction north of east how to find the directionnn magnitude 16.21
km/h direction north of east

Explanation / Answer

avg speed =(80 +119)/2=99.5

abg vel. = (80i *3 +(119cos25i +119 sin25j)*3)/6 =(197.95i -15.74j)/2

hence magnitude is 16.21 km per hour

direction is tan( inverse of 15.74/197.95) =75.01

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