A 1050 kg automobile is at rest at a traffic signal. At the instant the light turns green, the automobile starts to move with a constant acceleration of 3.3 m/s2. At the same instant a 2200 kg truck, traveling at a constant speed of 9.0 m/s, overtakes and passes the automobile. (a) How far is the center of mass of the automobile-truck system from the traffic light at t = 2.5 s? (b) What is the speed of the center of mass of the automobile-truck system then?
Answers: 1
Physics, 22.06.2019 00:00
A1000-kg weather rocket is launched straight up. the rocket motor provides a constant acceleration for 16-s, then the motor stops. the rocket altitude 20-s after launch is 510-m. you can ignore any effects of air resistance. a. what was the rocket’s acceleration during the first 16-s? b. what is the rocket’s speed as it passes through a cloud 5100-m above the ground?
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The diagram shows a series of volcanic island and a hot spot determine the direction of movement of the tectonic plate that for the island
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How would a small bar magnet be oriented when placed at position x?
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A 1050 kg automobile is at rest at a traffic signal. At the instant the light turns green, the autom...
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