spring constant is 400 N/m, the height of the incline is 2.0o m, and the horizontal surface is frictionless. (Due to the nature of this problem, do not use rounded intermediate values in your calculations -including answers submitted in WebAssign.) 2.0 m 30° (a) What is the speed of the object (in m/s) at the bottom of the incline? 2.58 v m/s (b) What is the work of friction (in J) on the object while it is on the incline? 244 (c) The spring recoils and sends the object back toward the incline. What is the speed of the object (in m/s) when it reaches the base of the incline? 2.58 v m/s (d) What vertical distance (in m) does move back up the incline? m

spring constant is 400 N/m, the height of the incline is 2.0o m, and the horizontal surface is frictionless. (Due to the nature of this problem, do not use rounded intermediate values in your calculations -including answers submitted in WebAssign.) 2.0 m 30° (a) What is the speed of the object (in m/s) at the bottom of the incline? 2.58 v m/s (b) What is the work of friction (in J) on the object while it is on the incline? 244 (c) The spring recoils and sends the object back toward the incline. What is the speed of the object (in m/s) when it reaches the base of the incline? 2.58 v m/s (d) What vertical distance (in m) does move back up the incline? m

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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A block of mass 0.250 kg is placed on top of a light, vertical spring of force constant 5 000 N/m and pushed downward so that the spring is compressed by 0.100 m. After the block is released from rest, it travels upward and then leaves the spring. To what maximum height above the point of release does it rise?
A 6 000-kg freight car rolls along rails with negligible friction. The car is brought to rest by a combination of two coiled springs as illustrated in Figure P6.27 (page 188). Both springs are described by Hookes law and have spring constants k1 = 1 600 N/m and k2, = 3 400 N/m. After the first spring compresses a distance of 30.0 cm, the second spring acts with the first to increase the force as additional compression occurs as shown in the graph. The car comes to rest 50.0 cm after first contacting the two-spring system. Find the cars initial speed.
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