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Superman must stop 120-km/h a train in 150 m to keep it from hitting a stalled car on the tracks.

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Superman must stop 120-km/h a train in 150 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? Compare to the weight of the train (give as %). How much force does the train exert on Superman?

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Find the average acceleration from Eq 2 11c and then find the force need…View the full answer


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Physics Principles with Applications

Physics Principles with Applications

ISBN: 978-0321762429

7th edition

Authors: Douglas C. Giancoli

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Question Posted: October 05, 2017 07:51:21
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