Superman must stop a 170-km/h train in 160 m to keep it from hitting a stalled...
Superman must stop a 170-km/h train in 160 m to keep it from hitting a stalled car on the tracks.
If the train's mass is 3.6×105 kg , how much force must he exert (find the magnitude)?
Compare to the weight of the train (give as %).
How much force(in magnitude) does the train exert on Superman?
Homework Answers
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Superman must stop a 170-km/h train in 160 m to keep it from
hitting a stalled...
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2. Superman must stop a 120-km/h train in 100 m to keep it from hitting a stalled car on the tracks. The train's mass is 3.6 × 105 kg. a. Determine the force that must be exerted on the train.Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the force is in the direction of the initial velocity and negative value if the direction of the force is in the...
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Please help me with the following questions: 1) Superman must stop a 115-km/h train in 150 m to keep it from hitting a stalled car on the tracks. The train's mass is 3.6 × 105 kg. Part A: Determine the force that must be exerted on the train. Express your answer to two significant figures and include the appropriate units. Enter positive value if the direction of the force is in the direction of the initial velocity and negative value...
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How much work must be done to stop a 1500 kg car traveling at 80 km/h ? Express your answer using two significant figures. h ΚΑΙ ΑΣφ ? W = Submit Request Answer Provide Feedback <Assignment 6 Problem 7.38 Part A If it requires 55 J of work to stretch a particular spring by 1.8 cm from its equilibrium length, how much more work will be required to stretch it an additional 45 cm? Express your answer using two significant...
2. Suppose a car travels 108 km at a speed of 20.0 m/s, and uses
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