R14–4. The block has a mass of 0.5 kg and moves withinthe smooth vertical slot. If the block starts from rest whenthe attached spring is in the unstretched position at A,determine the constant vertical force F which must beapplied to the cord so that the block attains a speedVB = 2.5 m/s when it reaches B; sg = 0.15 m. Neglect themass of the cord and pulley.%3D-0.3 m-0.3 mB•SB-k = 100 N/m

Given, The mass of block, m=0.5 kg The block starts from rest at A, vA=0 The block speed, vB=2.5 m/s…

Answered: R14–4. The block has a mass of 0.5 kg…

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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A pulley-and-cable assembly supports a block W and it requires a force at P for equilibrium. Since block W has a mass of 30kg (g=9.806), calculate the force of the spring CD and the magnitude of force P.
A block attached to a horizontal spring with a spring constant k = 200 N/m is displaced %3D to x = +6 cm and released from rest. The time needed for the block to reach x = +6 cm for the first time is 0.2 sec. Determine the maximum restoring force applied on the block and its maximum acceleration. F_max = 12 N; a_max = 14.8 m/s^2, %3D F_max = 12 N; a_max 59.2 m/s^2, %3D F_max = -1200 N; a_max = 5921.7 m/s^2, %3D F_max = 6 N; a_max = 59.2 m/s^2, %3D O F_max = 6 N; a_max = 14.8 m/s^2,
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People who ride motorcycles and bicycles learn to look out for bumps in the road and especially for washboarding, a condition in which many equally spaced ridges are worn into the road. What is so bad about washboarding? A motorcycle has several springs and shock absorbers in its suspension, but you can model it as a single spring supporting a block. You can estimate the force constant by thinking about how far the spring compresses when a heavy rider sits on the seat. A motorcyclist traveling at highway speed must be particularly careful of washboard bumps that are a certain distance apart. What is the order of magnitude of their separation distance?

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