The figure above shows a block rotating in a vertical circle at the end of a string. At P, the string pulls down on the block with a force of 20 N (a) Below, draw a free body diagram of the block at point P labelling the forces.
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- A 1000 kg car travels around a circular track at a constant speed. Draw the free-body diagram for the car as viewed from the front of the car. If the radius of the path is 200 m and the car is traveling at 25 m/s, What is the magnitude of the force keeping the car in a circular path? (Give answer to 3 sig figs)The Colussus is a ferris wheel at 6 Flags amusement park with a 50.4 m diameter. It rotates at 1.5 rpm. For the following, assume the rider has a mass m = 65 kg, and that the rider sits forward with feet up so the only part of the seat that exerts a force on the rider is the horizontal seat bottom. As usual, a free body diagram is a great place to start. Find the normal force exerted by a seat on a person riding the Colossus at the highest point in the ride. Hint: the speed of the rider can be computed from the circumference of their circular path and the time it takes to make one full revolution. Find the normal force exerted by a seat on a person riding the Colossus at the lowest point in the ride.Section II: Problems Page 3 Problem 1: Newton's Laws A1300 kg car is held in place by a light cable on a very smooth (frictionless ramp). The cable makes an angle of ß = 31° above the surface of the ramp, and the ramp itself rises & 25° above the horizontal, as shown in the figure below. (a) Draw a free body diagram of the car. Be sure to label all forces clearly and to place the angles 6 and p in your diagram. 31.0° www. 25.0° b) Find the tension in the cable FT c) How hard does the surface of the ramp push on the car? Framp Cable
- Consider the 65.0 kg mountain climber in the figure. (a) Find the tension in the rope (in N) and the force that the mountain climber must exert with her feet (in N) on the vertical rock face to remain stationary. Assume that the force is exerted parallel to her legs. Also, assume negligible force exerted by her arms. tension in rope N: force on feet N: (b) What is the minimum coefficient of friction between her shoes and the cliff?Help me pleaseFind the acceleration of the 40-kg object in the diagram below. Assume that the applied force makes an angle 25 degrees above horizontal and the coefficient of kinetic friction between the box and surface is .12. (You will need to complete the free-body diagram in order to calculate this.)