Motion Defined: All motion is relative. An object is in motion when it changes i

Question

Motion Defined: All motion is relative. An object is in motion when it changes its place or position. A person sitting in an automobile on the 405 freeway traveling 100 km/hr is at rest with respect to the car but is traveling at 100 km/hour with respect to the earth. If the car passes another car traveling at 80 km/hour in the same direction, the speed of the first car is 20 km/hr with respect to the slower automobile. You are travelling south down the 405 freeway at 65 miles an hour. A speeder passes you at 20 miles per hour faster than you in the car pool lane. What is the speed of the other car? Question 14 options: 65 miles per hour 75 miles per hour 85 miles per hour 95 miles per hour

Explanation / Answer

75 miles per hour

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