Conservation of Energy

Conservation of Energy Principles

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Title
The gravitational potential energy of a box sliding down an incline decreases by 25 J while the kinetic energy increases by 23 J. describe this scenario?
A 5-kg box slides down a frictionless incline from a vertical height of 10 m. The box starts from rest. What is the boxs velocity at the bottom of the hill?
A 5-kg box slides 10 m diagonally down a frictionless ramp inclined at 45°. At the bottom of the ramp, it slides on a rough horizontal concrete floor with a coefficient of friction of 0.6.- Calculate the velocity of the box when it reaches the bottom of t
A car wheel has a moment of inertia of 1.5 kg.m^2. A brake is applied, which decreases its rotational velocity from 25 revolutions per second to zero. How much energy is transferred to thermal energy in the braking process?
A 70-kg stunt man freefalls from a building for 125 m and hits an airbag. The airbag exerts a force on him as he depresses it 5 m and comes to a complete stop. What is the average force exerted by the airbag?
A water slide is constructed so that swimmers, starting from rest at the top of the slide, leave the end of the slide traveling horizontally. One person hits the water 6.5 m from the end of the slide in a time of 0.75 s after leaving the slide. At what he
A block is at rest at point A as shown in the diagram to the right. It slides down the track without friction until point B, where suddenly it encounters “a whole lot of friction” and eventually stops in 4.9 m. A and B are part of a circle with a radius o
Some "extreme sport fun loving person" wants to go bungee jumping. They're not sure if the cord is strong enough to stop them from hitting the ground, but decide to jump and try anyway. The bungee cord's "strength" is measured by its spring constant, whic
A 1-kg block is attached to a spring with a constant of 100 N/m. The spring is displaced 0.2 m from equilibrium. When the block is let go, what is its velocity as it passes the equilibrium point?
Which of the following statem ents are true?(A) The total mechanical energy of an object subject only to conservative forces is constant.(B) The energy transferred by nonconservative forces is path dependent.(C) The energy transferred by conservative forc

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