Physics Laboratory Manual
4th Edition
ISBN: 9781133950639
Author: David Loyd
Publisher: Cengage Learning
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Chapter 11, Problem 5PLA
To determine
The spring potential energy.
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Physics Laboratory Manual
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- A worker lifts a 20 kg block to a height of 1.5 meters. How much power was used by the worker if this process takes 5 seconds? Show your workarrow_forwardThe potential energy of an object attached to a spring is 2.80 J. If the amplitude A of the simple harmonic motion is 17.0 cm and the spring constant k is 277 N/m, what is the kinetic energy of the mass-spring system when the potential energy is 2.80 J? What is the magnitude of the largest force F(spring,max) that the object experiences? Show your work.arrow_forwardPlease answer all components of the question: An amusement park ride uses magnets to accelerate a 500 kg car to an initial speed of 15 m/s. The roller coaster then begins to coast up a hill. a) What energy conversion takes place as the car goes up the hill? Justify b) What is the maximum height that the car can attain without receiving additional energy? Show your work. c) If the car loses 10,000 J of energy to friction, what height will it attain instead? Show your work.arrow_forward
- A block sliding along a frictionless, horizontal surface with a speed of 0.6 m/s collides with a spring attached to a wall. The spring is compressed 19.0 cm before the block is stopped. If the same block were to collide with the spring again while having a speed of 2.6 m/s, what would the spring's compression be before stopping the block this time, in centimetres? Be clear and show all your work. (HANDWRITTEN)arrow_forwardIf a slinky has a mass of 0.5 kg and 100 loops, calculate the mass density (m/L) of a slinky that is stretched 5 m, but only 80 loops are stretched. Show your work.arrow_forwardHow much work is being done upon the cart if the man pushing the cart along a horizontal surface applies a force of 160 N to a distance of 7m? Show your work. W=F d (cos theta)arrow_forward
- A toy uses a spring to launch projectiles. If the spring has a spring constant of 80 N/m and is compressed a distance of 0.04 m, with what velocity could it launch a 0.003-kilogram projectile? Show your work.arrow_forwardThe initial swing of a pendulum has an arc length of 30 inches. If the arc length loses 3% with each swing, when will the length of the arc be less than half of the original length? Show all your work:arrow_forwardCalculate the following problem below. Show your solution. 1. A 2kg block is held 1.0m above the floor for 50s. The done is________. 2. The work down lifting a 30kg set of bricks to a height of 20cm is________.arrow_forward
- Please answer all components of the question: A teacher is planning to demonstrate the principle of energy conservation to his class by bungee jumping from the scaffolding in the school's gym. He has a mass of 120 kg, and the scaffolding is 25 m above the ground. a) How much potential energy would the teacher have at that location? Explain/Show your work. b) If the teacher wants to have the bungee stop his motion when he is 2 meters above the gym floor, how much energy will the bungee need to absorb? Explain/Show your work. c) If he orders a bungee cord with an unstretched length of 8 m, what spring constant should he be sure to get in order to safely perform this demonstration? Explain/Show your work.arrow_forwardPlease show all work step by step.arrow_forwardA player kicks a soccer ball (0.5 kg mass) at the goal. It hits the crossbar at a height of 2.5 m, while moving at a speed of 30 m/s. a) What is the total energy of the ball when it hits the crossbar? Show your work. b) A soccer ball sits at rest on top of a building. How tall does the building have to be so that the ball has the same energy as the soccer ball in part a)? Show your work.arrow_forward
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Kinetic Energy and Potential Energy; Author: Professor Dave explains;https://www.youtube.com/watch?v=g7u6pIfUVy4;License: Standard YouTube License, CC-BY