The motion of a crate can be divided into two stages. Stage 1 (A-B): The crate with mass m = 4 kg is compressed against a massless spring with a spring constant (stiffness) k = 256 N/m to point A (0.5 m from its equilibrium position O), then released from rest. The crate moves along a horizontal frictionless surface, from A to B, 1 m above the reference level of PEg. Stage 2 (B-C): The crate slides down a rough curved surface until it reaches its bottom at point C with a speed vc = 5 m/s. Calculate the work done on the crate in stage 2 by the force of kinetic friction. Take g = 10 m/s². VA 0 XA h = 1 m = 5 m/s O -22 J O - 11 J -5 J O - 44 J - 33J O -0.5 m PE = 0- Vc

The motion of a crate can be divided into two stages. Stage 1 (A-B): The crate with mass m = 4 kg is compressed against a massless spring with a spring constant (stiffness) k = 256 N/m to point A (0.5 m from its equilibrium position O), then released from rest. The crate moves along a horizontal frictionless surface, from A to B, 1 m above the reference level of PEg. Stage 2 (B-C): The crate slides down a rough curved surface until it reaches its bottom at point C with a speed vc = 5 m/s. Calculate the work done on the crate in stage 2 by the force of kinetic friction. Take g = 10 m/s². VA 0 XA h = 1 m = 5 m/s O -22 J O - 11 J -5 J O - 44 J - 33J O -0.5 m PE = 0- Vc

University Physics Volume 1

18th Edition

ISBN:9781938168277

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

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

Chapter8: Potential Energy And Conservation Of Energy

Section: Chapter Questions

Problem 79AP: Consider a block of mass 0.200 kg attached to a spring of spring constant 100 N/m. The block is...

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