Name: ___________________________ Elastic Potential Energy and Kinetic Energy
Previously, we learned that the amount of elastic potential energy stored in a stretched or compressed spring could be expressed as: Where x = amount of stretch of compression of the spring k = spring constant Ee =
Nonconservative Forces
Physics 11
Name: ___________________________
Example: A low-friction cart with a mass of 0.25 kg travels along a horizontal track and collides head on with a spring that has a spring constant of 155 N/m. If the spring was compressed by 6.0 cm, how fast was the cart initially travelling?
Example: A 1.2 kg dynamic cart is rolling to the right along a horizontal lab desk at 3.6 m/s, when it collides head on with a spring bumper that has a spring constant of 2.00 x 102 N/m. a) Determine the maximum compression of the spring.
b) Determine the speed of the cart at the moment that the spring was compressed 0.10m.
c) Determine the acceleration of the cart at the moment that the spring was compressed 0.10m.
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Work: 1) A student holds a 15 kg bowling ball 1.5 m above the ground for 15 s. How much work is done on the ball? 2) A block of wood is pushed at a constant velocity with a force of 25.0 N. How far did it travel if 100.0 J of. work are done on it? 3)
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The vertical spring reaches a new equilibrium at position 0.23 m. Determine: a) Force Constant b) If spring returned to initial position, then allowed to fall, what is the net force on the box when it has dropped 0.15 m? c)Acceleration of box from (b
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Electrical. ⢠Chemical. For example, if a box is pushed across the floor, work has to be done to overcome the force of friction between the floor and the bottom of the box that is opposing the movement. How do we calculate the work done? Energy tra
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