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A train starting from rest accelerates at 4m/s for 5 seconds. Calculate its velocity at the end of the 5 seconds.
Answers: 3
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1. jay fills a wagon with sand (about 20 kg) and pulls it with a rope 30 m along the beach. he holds the rope 25° above the horizontal. the rope exerts a 20-n tension force on the wagon. how much work does the rope do on the wagon?
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Physics, 22.06.2019 13:40, youngbeauty17
Awind turbine is rotating counterclockwise at 0.5 rev/s and slows to a stop in 10 s. its blades are 20 m in length. (a) what is the angular acceleration of the turbine? (b) what is the centripetal acceleration of the tip of the blades at t=0s? (c) what is the magnitude and direction of the total linear acceleration of the tip of the blades at t=0s?
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Why do atoms emit energy of only specific wavelengths
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A train starting from rest accelerates at 4m/s for 5 seconds. Calculate its velocity at the end of t...
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