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A box of mass m = 40 kg is released from rest at the top ofa frictionless ramp. The ramp makes an angle 6: 45
A box of mass m = 40 kg is released from rest at the top ofa frictionless ramp. The ramp makes an angle 6: 45" to the horizontal. After sliding from a distance d= 2.50 m from the release point down the ramp, the box strikes a spring of force constant k = 500 N/m, as shown at right. The box compresses the spring, momentarily stops, and then begins to slide back up the ramp. At what rate is gravity doing work 011 the box at the instant the box hits the spring? What is the maximum compression MW of the spring? Ans: 1630 Watts ,2.31 m Two masses, m1 and on, are initially held at rest near one another on a frictionless surface with a compressed spring in between them. The \"I l H I H I H m masses are then released and the spring ejects rm to the left and m2 to the , / right. A graph is provided showing the rightward force exerted on In: as a function of time while the spring is ejecting it. If on is 4 kg and m2 is 2 kg, how much potential energy was initially stored in the spring before it was released? Ans : 234 Joules
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