In the sport of curling, athletes slide stones with a mass of about 20 kg across a levelice surface and release them. The goal is to have them stop near a distant target. Thecoefficient of kinetic friction between the ice and stone is 0.05. A distance of 35.0 mseparates the release point from the target. What speed should the stone have whenit is released in order to stop on the target?

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Answered: In the sport of curling, athletes slide…

Structural Analysis

6th Edition

ISBN:9781337630931

Author:KASSIMALI, Aslam.

Publisher:KASSIMALI, Aslam.

Chapter2: Loads On Structures

Section: Chapter Questions

Problem 1P

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A boy weighing 107 lb runs and jumps on his 15-lb sled with a horizontal velocity of 17 ft/sec. If the sled and boy coast 69 ft on the level snow before coming to rest, compute the coefficient of kinetic friction μk between the snow and the runners of the sled.
The 50 kg crate shown in the figure rests on a horizontal surface for which thecoefficient of kinetic friction is ??=0.3 If the crate is subjected to a 400 Ntowing force as shown, determine the velocity of the crate in 3? starting fromrest
A 1 kg ball moving horizontally to the right at 12m/s strikes a 10kg block placed at rest at an inclined plane, which makes an angle of 25 degrees with the horizontal. The coefficient of restitution is 0.60 and the coefficient of kinetic friction between the block and the inclined surface is 0.40. What is the velocity of the block after impact? What is the velocity of the ball after impact?
Two identical billiard balls may move freely on a horizontal table. Ball A has a velocity of 0.4 m/s as shown, and hits ball B, which is at rest, at point C defined by  = 40 (the line of impact is along 40° path with respect to the horizontal direction). Assuming no friction, and knowing the coefficient of restitution between the two balls is 0.75, determine the velocity of each ball after impact
A 500 N block is resting on an inclined plane and is subjected to a constant force of 600N acting parallel to the inclined plane. After the block has moved 3 m from rest along the inclined plane the force 600N is removed. The inclined plane has a slope of three vertical to four horizontal. Coefficient of friction is 0.20 a. Which is the following gives the distance that the black will move further along the inclined plane until it will stop? b. Which of the following gives the velocity of the block when this for 600 Newton was removed? c. Which of the following gives the velocity of the block when it returns to its initial position?
A ball is dropped from rest at the top of a 60 meters tower. A horizontal wind gives it a constant horizontal acceleration, and the ball hits the ground 3 m west of its release point. Neglect vertical air resistance and neglect any effects associated with the rotation of the earth. 1. Calculate the horizontal acceleration ax. a. 0.490 m/s² b. 0.235 m/s² c. 0.583 m/s² d. 0.456 m/s² 3. Calculate the horizontal velocity Vx of the ball as it hits the ground. a. 1.716 m/s b. 1.235 m/s c. 1.524 m/s d. 1.124 m/s
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It is observed that when the bed of the dump truck is raised to an angle of θ = 25°the vending machines will begin to slide off the bed, shown. Determine the static coefficient of friction between a vending machine and the surface of the truckbed.
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The helicopter flying in Figure 4 with a constant velocity of 180 km/h and is directly above point A when a loose part begins to fall. The part lands 6.5 seconds later at point B on an inclined surface. 16. The vertical motion component of the falling part is A. uniform motion B. non-uniformly accelerated C. uniformly accelerated D. stationary
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