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Q1. A block of mass = 10.0 is attached to the end of an ideal spring. Due to the weight of the block, the block remains at rest when the spring is stretched a distance = 8.00 from its equilibrium length. The spring has an unknown spring constant. Take the acceleration due to gravity to be = 9.81.

What is the spring constant?

Q2. A professor's office door is 0.90 wide, 2.00 high, 4.00 thick; has a mass of 30, and pivots on frictionless hinges. A "door closer" is attached to door and the top of the door frame. When the door is open and at rest, the door closer exerts the torque of 5.1.

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Category:- Physics
Reference No.:- M9162274

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