Hodor and Bran must cross a horizontal frictionless 12-m long ice bridge. From one foot of the bridge, Hodor pulls Bran who is sitting on a sled by a 150-N force that makes an angle of with the horizontal. Find:the work done by Hodorthe change in the kinetic energy of Bran and the sled, andthe speed of Bran and the sled at the end of the bridge if initially, they are at rest. Bran and the sled have a combined mass of 280 kg.

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Description: Hodor and Bran must cross a horizontal frictionless 12-m long ice bridge. From one foot of the bridge, Hodor pulls Bran who is sitting on a sled by a 150-N force that makes an angle of with the horizontal. Find:the work done by Hodorthe change in th

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University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter7: Work And Kinetic Energy

Section: Chapter Questions

Problem 66P: A sled stalls from rest at the top of a snow-covered incline that makes a 22 angle with the...

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Hodor and Bran must cross a horizontal frictionless 12-m long ice bridge. From one foot of the bridge, Hodor pulls Bran who is sitting on a sled by a 150-N force that makes an angle of with the horizontal. Find:

the work done by Hodor
the change in the kinetic energy of Bran and the sled, and
the speed of Bran and the sled at the end of the bridge if initially, they are at rest. Bran and the sled have a combined mass of 280 kg.

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