A black of mass m=750g is released from rest and slides down a frictionless track of height h=55.2cm. At the bottom of the track the block slides freely along a horizontal table until it hits a spring attached to a heavy, immovable wall. The spring compressed by 2.64cm at the maximum compression. What is the value of the spring constant k?
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Initially the mass had Potential Energy (PE) due to it's elevation. At the end of ...
Solution Summary
At the end of the motion, all this PE is converted into stored energy in the spring. This solution includes calculations.
Mass m whirls on a frictionless table, held to circular motion by a string which passes through a hole in the table. The string is slowly pulled through the hole so that the radius of the circle changes from L1 to L2.
Show that the work done in pulling the string equals the increase in kinetic energy of the mass.
Two blocks are free to slide along a frictionless wooden track ABC as shown in Figure (see attachment). A block of mass m1 = 4.95 kg is released from A. Protruding from its front end is the north pole of a strong magnet, repelling the north pole of an identical magnet embedded in the back end of the block of mass m2 = 9.00 kg, i
A particle is under the influence of a force F = -kx+(kx^3)/a^3 where k and a are constants and k is positive.
1) Find U(x) the potential energy
2) What happens when E (total energy) = (1/4)ka^3
A block of mass M slides along a horizontal table with speed Vo. At x=0 it hits a spring constant k and begins to experience a frictional force. The coefficient of friction is a variable and is given by u=bx, where b is a constant. Find the loss in mechanicalenergy when the block has come momentarily to rest.
Explain the concept of Work, Energy and Power. Also describe various types of mechanicalenergy compared to kinetic energy and potential energy and inter relation between them.
10. A small block of mass m1 = 0.480 kg is released from rest at the top of a curved-shaped frictionless wedge of mass m2 = 3.00 kg, which sits on a frictionless horizontal surface as in Figure (see attachment). When the block leaves the wedge, its velocity is measured to be v1 = 3.60 m/s to the right, as shown in Figure.
(a
Please help with the following problem.
A Bungee Jumper jumps off of height H and just reaches the bottom of the cliff with a zero velocity. Just before her cable snaps her back upward, while she is motionless, she grabs a rock of mass m1.
You observe that the jumper achieves the height h on the way back up. What is m1?
A 12 kg block is released from rest on a 30 degree frictionless incline. Below is a block that can be compressed 2.0 cm by a force of 270 N. The block momentarily stops when it compresses the spring by 5.5 cm. How far does the block move down the incline from its rest position to this stopping point? What is the speed of the bl
