2. A0.01-kg block, attached to a spring, is pushed until the spring is compressed a distance of 6 cm from the equilibrium position. The block is released from rest and slides along a path that is without friction from point A to point B as shown in the figure below. After reaching point B, the block travels on a rough ramp of angle 30" from the ground and travels 0.5m (point C). Assuming a spring constant of 53.5 N/m and a coefficient of kinetic friction of on the ramp is 0.25. a. What is the velocity of the block at point C (v.)? As the block continues beyond point C, what is the maximum height (yl, if it follows a projectile motion (no air resistance)? b. What is the magnitude of the velocity of the block just before it hits the ground ( vo)? C. y=? L- 05 - SAS Nju 001kg 30.0

2. A0.01-kg block, attached to a spring, is pushed until the spring is compressed a distance of 6 cm from the equilibrium position. The block is released from rest and slides along a path that is without friction from point A to point B as shown in the figure below. After reaching point B, the block travels on a rough ramp of angle 30" from the ground and travels 0.5m (point C). Assuming a spring constant of 53.5 N/m and a coefficient of kinetic friction of on the ramp is 0.25. a. What is the velocity of the block at point C (v.)? As the block continues beyond point C, what is the maximum height (yl, if it follows a projectile motion (no air resistance)? b. What is the magnitude of the velocity of the block just before it hits the ground ( vo)? C. y=? L- 05 - SAS Nju 001kg 30.0

Principles of Physics: A Calculus-Based Text

5th Edition

ISBN:9781133104261

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter7: Conservation Of Energy

Section: Chapter Questions

Problem 71P

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Similar questions

A weight is connected to a spring that is suspended vertically from the ceiling. If the weight is displaced downward from its equilibrium position and released, it will oscillate up and down. (a) If air resistance is neglected, will the total mechanical energy of the system (weight plus Earth plus spring) be conserved? (b) How many forms of potential energy are there for this situation?
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 childs pogo stick (Fig. P7.69) stores energy in a spring with a force constant of 2.50 104 N/m. At position (x = 0.100 m), the spring compression is a maximum and the child is momentarily at rest. At position (x = 0), the spring is relaxed and the child is moving upward. At position , the child is again momentarily at rest at the top of the jump. The combined mass of child and pogo stick is 25.0 kg. Although the boy must lean forward to remain balanced, the angle is small, so lets assume the pogo stick is vertical. Also assume the boy does not bend his legs during the motion. (a) Calculate the total energy of the childstickEarth system, taking both gravitational and elastic potential energies as zero for x = 0. (b) Determine x. (c) Calculate the speed of the child at x = 0. (d) Determine the value of x for which the kinetic energy of the system is a maximum. (e) Calculate the childs maximum upward speed. Figure P7.69
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Consider a block of mass 0.200 kg attached to a spring of spring constant 100 N/m. The block is placed on a frictionless table, and the other end of the spring is attached to the wall so that the spring is level with the table. The block is then pushed in so that the spring is compressed by 10.0 cm. Find the speed of the block as it crosses (a) the point when the spring is not stretched, (b) 5.00 cm to the left of point in (a), and (c) 5.00 cm to the right of point in (a).
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