Concept explainers
The “Giant Swing” at a county fair consists of a vertical central shaft with a number of horizontal arms attached at its upper end. (See Figure 6.28.) Each arm supports a seat suspended from a 5.00-m-long rod, the upper end of which is fastened to the arm at a point 3.00 m from the central shaft. (a) Make a free-body diagram of the seat, including the person in it. (b) Find the time of one revolution of the swing if the rod supporting the seat makes an angle of 30.0° with the vertical. (c) Does the angle depend on the weight of the passenger for a given rate of revolution?
Figure 6.28 Problem 5.
Trending nowThis is a popular solution!
Learn your wayIncludes step-by-step video
Chapter 6 Solutions
College Physics (10th Edition)
Additional Science Textbook Solutions
Physics for Scientists and Engineers with Modern Physics
Tutorials in Introductory Physics
An Introduction to Thermal Physics
Physics (5th Edition)
Conceptual Integrated Science
- The roller coaster 'Scream' at Six Flags Magic Mountain has a vertical circular loop. After a huge 141ft drop, you enter the bottom of this loop with a radius of 64.0 ft at the ride's top speed of 64.3 mph. Ifyou have a mass of 56.2 kg, calculate the normal force exerted on you by the seat of the coaster.Express your answer in terms of your weight, mg.arrow_forwardConsider the Atwood machine shown in the figure, where m, = 2.00 kg and m, = 7.65 kg. The system starts at rest, then the sphere is given a quick push downward, giving it an initial speed of 2.35 m/s. Assume the pulley and cord are massless, and the cord is inextensible. Neglect friction. (a) Through what distance (in m) will m, descend? (b) What is the velocity (in m/s) of m, after 1.80 s? magnitude m/s direction ---Select---arrow_forwarddo fast i will 10 upvotes.arrow_forward
- I want the answerarrow_forwardA box of mass 3.0 kg slides down a rough vertical wall. The gravitational force on the box is 29.4 N . When the box reaches a speed of 2.5 m/s , you start pushing on one edge of the box at a 45∘∘ angle (use degrees in your calculations throughout this problem) with a constant force of magnitude FpFpF_p = 23.0 N , as shown in (Figure 1). There is now a frictional force between the box and the wall of magnitude 13.0 N . How fast is the box sliding 2.6 s after you started pushing on it?arrow_forwardTwo blocks are connected by a massless rope as shown below. The mass of the block on the table is 4.0 kg and the hanging mass is 1.0 kg. The table and the pulley are frictionless. (a) Find the acceleration of the system. (b) Find the tension in the rope. (c) Find the speed with which the hanging mass hits the floor if it starts from rest and is initially located 1.0 m from the floor.arrow_forward
- A makeshift sign hangs by a wire that is extended over an ideal pulley and is wrapped around a large potted plant on the roof as shown in Figure P6.10. When first set up by the shopkeeper on a sunny and dry day, the sign and the pot are in equilibrium. Is it possible that the sign falls to the ground during a rainstorm while still remaining connected to the pot? What would have to be true for that to be possible? FIGURE P6.10 Problems 10 and 11.arrow_forwardA 8.00 kg wooden cuboid with a length of 2.00 m is attached to the wall as shown in Figure 5.1. A rope is fixed at the position 0.250 m to the right of the centre of mass of the cuboid and a 500N object is attached at the right end. Austin has a mass of 70.0 kg and is moving from the wall towards the other end of the cuboid. [Hint: Set the point where the cuboid attached to the wall as axis of rotation.] Q5. (a) 38.00 500 N Figure 5.1 If x = 0.300 m and the whole system is at equilibrium, find the minimum magnitude of the tension of the rope. (i) If the maximum tension of the rope is T =1.50x10' N maximum distance that Austin is able to move from the wall. (ii) find thearrow_forwardWRITE THE ANSWER IN 10 MINUTES PLEASE ! ! ! Consider the roller coaster ride shown below. Here r1=6m and r2=16m. Imagine that the car is traveling with a constant speed of v=6.7m/s throughout the whole ride. If the mass of a child riding the car is m=35kg, determine the apparent weight of the child at point A. Express your answer using SI units with zero decimal place. Take g=9.80m/s2.arrow_forward
- . In Figure 1, we have added an inclined plane to our machine. Whenthe masses are let go, they begin to move. There is friction between theinclined plane and m1, the coefficient of which is µk.(a) Draw FBDs for each mass. Take the y-axis to be perpendicular to theplane, and the x-axis parallel to it.(b) Sum the forces in the x- and y-directions.(c) Solve the equations from part (b) for the acceleration.(d) Take your result for the acceleration from part (c) and substituteα = 90◦(we will assume that neither mass contacts the inclined planehere). What equation for the acceleration a do you obtain? How is thisrelated to the standard Atwood Machine we discussed in class?arrow_forwardhelp me pleasearrow_forwardSuppose that down at the docks, Popeye is pulling the objects shown below with a force of 985[N] in the horizontal direction, as shown below. Mass #2 (150.0[kg]) is connected to Mass #1 (50.0[kg]) by a single cable that is passed over an ideal pulley. The coefficient of kinetic friction between Mass #2 and the ledge is 0.254. He successfully moves the objects after they were at rest. What is the magnitude of the gravitational force on Mass #1? Express your answer in units of Newtons. What is the magnitude of the gravitational force on Mass #2? Express your answer in units of Newtons. What is the magnitude of the tension in the rope connecting the objects? Express your answer in units of Newtons. What is the magnitude of the acceleration of the objects? Express your answer in units of m/s2.arrow_forward
- Physics for Scientists and Engineers: Foundations...PhysicsISBN:9781133939146Author:Katz, Debora M.Publisher:Cengage Learning