A race car travels northward on a straight, level track at a constant speed travels 0.751 km in 22.0 s. The return trip over the same track is made in 27.0 s. (a) What is the average velocity of the car in m/s for the first leg of the run? 34.136 m/s (b) What is the average velocity for the total trip? 7.136 X m/s

College Physics
11th Edition
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Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
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A race car travels northward on a straight, level track at a constant speed travels 0.751 km in 22.0 s. The return trip over the same track is
made in 27.0 s.
(a) What is the average velocity of the car in m/s for the first leg of the run?
34.136
m/s
(b) What is the average velocity for the total trip?
7.136
X m/s
Transcribed Image Text:A race car travels northward on a straight, level track at a constant speed travels 0.751 km in 22.0 s. The return trip over the same track is made in 27.0 s. (a) What is the average velocity of the car in m/s for the first leg of the run? 34.136 m/s (b) What is the average velocity for the total trip? 7.136 X m/s
A space probe on the surface of Mars sends a radio signal back to the Earth, a distance of 8.85 × 107 km. Radio waves travel at the speed of
light (3.00 x 108 m/s). How many seconds does it take for the signal to reach the Earth?
2.9
X S
Transcribed Image Text:A space probe on the surface of Mars sends a radio signal back to the Earth, a distance of 8.85 × 107 km. Radio waves travel at the speed of light (3.00 x 108 m/s). How many seconds does it take for the signal to reach the Earth? 2.9 X S
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