**Chapter 11****Problem 11.56**A 4.5 kg box slides down a 4.5-m-high frictionless hill, starting from rest, across a 1.8-m-wide horizontal surface, then hits a horizontal spring with spring constant 550 N/m. The other end of the spring is anchored against a wall. The ground under the spring is frictionless, but the 1.8-m-long horizontal surface is rough. The coefficient of kinetic friction of the box on this surface is 0.24.---**Part A**What is the speed of the box just before reaching the rough surface? Express your answer to two significant figures and include the appropriate units.\[ v_1 = \text{Value} \, \text{Units} \]*[Submit] [Request Answer]*---**Part B**What is the speed of the box just before hitting the spring? Express your answer to two significant figures and include the appropriate units.\[ v_2 = \text{Value} \, \text{Units} \]*[Submit] [Request Answer]*---**Part C**How far is the spring compressed? Express your answer to two significant figures and include the appropriate units.\[ \Delta x = \text{Value} \, \text{Units} \]*[Submit] [Request Answer]*

We are given h = 4.5 m m = 4.5 kg Now according to the Work Energy theorem we…

A 4.5 kg box slides down a 4.5-m -high frictionless hill, starting from rest, across a 1.8-m -wide horizontal surface, then hits a horizontal spring with spring constant 550 N/m. The other end of the spring is anchored against a wall. The ground under the spring is frictionless, but the 1.8-m- long horizontal surface is rough. The coefficient of kinetic friction of the box on this surface is 0.24.

A 4.5 kg box slides down a 4.5-m -high frictionless hill, starting from rest, across a 1.8-m -wide horizontal surface, then hits a horizontal spring with spring constant 550 N/m. The other end of the spring is anchored against a wall. The ground under the spring is frictionless, but the 1.8-m- long horizontal surface is rough. The coefficient of kinetic friction of the box on this surface is 0.24.

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter8: Conservation Of Energy

Section: Chapter Questions

Problem 24PQ: A block is placed on top of a vertical spring, and the spring compresses. Figure P8.24 depicts a...

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