**Understanding the Motion of an Air Hockey Puck**3. **Scenario Analysis:** An air hockey puck is initially moving to the right on a horizontal air table, where friction is negligible. A force (\(\vec{F}_{\text{yp}}\)) is applied to the left, opposite to the puck's motion. This force is not necessarily constant and is used to stop the puck and then reverse its direction. **Diagram Explanation:** The diagram shows the puck on a horizontal surface with an arrow (\(\vec{F}_{\text{yp}}\)) pointing to the left. This arrow represents the applied force opposing the puck’s initial rightward movement. **Considerations:** By the end of the scenario, the puck travels to the left at a speed lower than its initial speed. If we consider the puck as the system, we need to determine whether the work done by the applied force is positive, negative, or zero. **Explanation:** Work done is calculated by the equation: \( W = \int \vec{F} \cdot d\vec{x} \). Here, the force applied is opposite to the initial direction of motion, which means the force does negative work while stopping the puck. Once the puck reverses direction, the work done in this phase is still negative as the force has reduced the puck's kinetic energy to less than its initial value. Thus, the work done by your force is negative.

Answered: Image /qna-images/answer/22be712b-e78e-4b8d-9a7e-831e778c8363.jpg

3. An air hockey puck is moving to the right along a horizontal air table (so friction is completely negligible). You apply a (not necessarily constant) force to the left that stops the puck and eventually turns the puck around. See the figure below. At the final time, the puck is now traveling to the left but with a speed less than the initial speed. If the puck is your system, is the work done by your force, positive, negative, or zero. Explain.

3. An air hockey puck is moving to the right along a horizontal air table (so friction is completely negligible). You apply a (not necessarily constant) force to the left that stops the puck and eventually turns the puck around. See the figure below. At the final time, the puck is now traveling to the left but with a speed less than the initial speed. If the puck is your system, is the work done by your force, positive, negative, or zero. Explain.

Elements Of Electromagnetics

7th Edition

ISBN:9780190698614

Author:Sadiku, Matthew N. O.

Publisher:Sadiku, Matthew N. O.

ChapterMA: Math Assessment

Section: Chapter Questions

Problem 1.1MA

See similar textbooks

Similar questions

the weight of the trailer is 2130kg, the weight of the tow truck is 6000kg and the slope of the truck is 2% going on a ramp. The speed of 69km/h when first entering the ramp and 320m along the ramp, then 93km/h is the speed. (i) find the total average force on the wheels of the truck. (ii) calculate the average force between the truck and the trailer.
Q3: A car with mass of 800 Kg moves around a 700 m-radius curve at a constant speed of 60 Km/h. If the road is not banked, what frictional force must the road exert on the tires so that they will keep the car along the curve?
Please answer all. Godbless and Thank you
A vertical spring with a mass attached at its end stretches by an amount 20 cm before coming to rest. The same spring and mass is now placed on a smooth inclined plane with one end fixed to the top of the plane. The plane makes an angle of 30° with the horizontal. By how much will the spring stretch before coming to rest? |The spring on the inclined plane is stretched further by 15 cm and released from rest. What is its speed when it passes through the new equilibrium position?
M4
graduate who joined the Navy as a pilot is about to take off in an F-15 (WF15 = 81,000 lb) from an aircraft carrier traveling at VA = 40 mph. The jet is launched from the catapult system (a connection just below the deck that assists the aircraft) with the force (Fcp) vs time curve shown that has points of F₁ = 1,000 lb at t₁ = 2 s and F₂ = 3,000 lb at t₂ = 5 s (the plane will reach the edge of the deck at t₂). The F-15 needs to be traveling at 170 mph to take off. Determine how much constant thrust (FTR) the engines must produce during the launch to reach this speed. F2 F₁ FCP t₁ VA t₂ FTR t (s)
A 2500 Ib car traveling 60 mph (88 ft/s) impacts a highway crash barrier as shown below. If the barrier were designed to exert the following force over the 40 ft distance of the barrier, how far would you expect the car to travel after impacting the barrier? 20 ft 40 ft 20,000 lbs Force (Ibs) 10,000 lbs Distance (ft)
3- A particle of mass m moves along a frictionless, horizontal plane with speed given by v(x)=k/x, where x is its distance from the origin and k is a positive constant. Find the force F(x) to which the particle is subject.