What is an average speed, What is an average speed

What is an average speed

Reference no: EM134096

Question1

A car travels along a straight line at a constant speed of 60.0 mi/h for a distance d and then another distance d in the similar direction at another constant speed. The average
velocity for the entire trip is 30.0 mi/h.

(a) What is the constant speed with that the car moved during the second distance d?

(b) What If? Assume the second distance d was travelled in the opposite direction; you forgot something and had to return home at the same constant speed as found in part (a). What is the average velocity for this trip?

Question2

A jet airplane flies with a speed of 1120 mph (mi/h) at an altitude of 2870 ft. It passes directly over the head. How soon after it passes directly above will the sonic boom? The speed of sound is 343 m/s.

Reference no: EM134096

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