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Q. A ball of mass 5.5 kg moving with speed of 1.8 m/s in the +x-direction hits a wall and bounces back with the same speed in the -x-direction. What is the change of momentum of the ball?
Q. A 4.1 kg bucket of water is raised from a well by a rope. If the upward acceleration of the bucket is 3.3 m/s2, find the force exerted by the rope on the bucket.
A player uses a hockey stick to increase the speed of a 0.200 kg hockey puck by 6m/s in 2 seconds. how much force was exerted on puck? how much on the stick.
A string vibrates in five segments to a frequency of 460Hz. (a) what is its fundamental frequency? (b) What frequency will cause it to vibrate in three segments.
Two bicycle tires are set rolling with the equivalent initial speed of 5.0 m/s along a long, straight road, and distance each travels before its speed is reduced by half is measured. One tire is inflated to a pressure of 40 {rm psi} and goes the dist..
What is the total flux
What is tension in each string
Create a formula to get the time constant of the liquid level system shown in the below figure. When the avg. operating level is h0. The resistance R is linear.
A force F = 200i - 400j + FZ k N, is acting through point A(0,0,0) m.
Objective questions based on momentum and force.
Hakeem throws an 8.50 g ball straight down from a height of 2.0 m. The ball strikes the floor at the speed of 7.5 m/s. What was the initial speed of the ball? Suppose that air resistance is negligible.
The sport with the fastest moving ball is jai alai, where measured speeds have reached 303km/h. If a professional jai alai player faces a ball at that speed and involuntarily blinks, he blacks out the scene for 100ms. How far does ball move throughou..
A weightlifter has been given a barbell to lift. One end has a mass of 5.05 kg while the other end has a mass of 5.20 kg. The bar is 0.20 m long. (Consider the bar to be massless, and assume that the masses are thin disks, so that their centers of ma..
A sport utility vehicle (SUV) and a sports car travel around the same horizontal curve. The SUV has a static stability factor of 0.80 and can negotiate the curve at a most speed of 18 m/s without rolling over.
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