Determine the angular speed of the reel
In 9.5 s a fisherman winds 2.1 m of fishing line onto a reel whose radius is 3.0 cm (assumed to be constant as an approximation). The line is being reeled in at a constant speed. Determine the angular speed of the reel.
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Determine the speed of the block just after the impact. Also, what distance does slide up the plane before it momentarily stops? The coefficient of kinetic friction between the block and the plane is u=.4.
An electric circular saw is designed to reach its final angular speed, starting from rest, in 1.40 s. Its average angular acceleration is 325 rad/s2. Obtain its final angular speed.
During braking, the angular displacement of each wheel is +13.0 revolutions. (a) How much time does it take for the bike to come to rest?
One diver runs off the edge of the cliff, tucks into a "ball," and rotates on the way down with an average angular speed of 1.4 rev/s. Ignore air resistance and determine the number of revolutions she makes while on the way down.
A 0.073 kg arrow is fired horizontally. The bowstring exerts an average force of 75 N on the arrow over a distance of 0.90 m. With what speed does the arrow leave the bow?
The coefficient of performance is COPH = 15. Determine TL for the low-temperature heat reservoir and the work required to operate the heat pump, W.
A skier slides horizontally along the snow for a distance of 12 m before coming to rest. The coefficient of kinetic friction between the skier and the snow is µk = 0.080. Initially, how fast was the skier going?
The maximum torsional stress is 12 ksi, and the maximum shear stress is 10 ksi. What is the von Mises stress for a point on the upper surface of the bar?
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