2. A 1,480-N crate is being pushed across a level floor at a constant speed by a force F of 370 N at an angle of 20.0° below the horizontal, as shown in the figure a below. The floor has some amount of friction.
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- VI. Does kinetic friction depend on the normal force? 21. Make a prediction. If normal force increases, does the kinetic friction increase, decrease, or stay the same? Give a reason r your prediction. 22. Use the Larger Area. Place the larger area of the block on the track. Record the hanging mass in the data table. Add a 500g rectangular block on top of the wood block. Change the hanging mass to 500g 23. Run the Experiment. Hang the 500g mass over the pulley. Repeat the experiment as before. 24. Change the Normal Force. Add a second 500g rectangular block on top of the block. Record the total mass in the data table. Perform the experiment again. 25. Change the Normal Force Again. Repeat the experiment by adding another 500g rectangular block on top of the block. Record the total mass. If the block does not move at all or stops after moving a short distance, add more mass to the hanging mass. Normal Force Dependence Total Block Hanging Mass Normal Force n = Mg (N) Mass Acceleration…A person is trying to lift a box off the floor. The box has a mass of 55kg and the person can lift with a force of300N.a. Can the person lift the box?b. Find the normal force acting on the box.A. What is the net force of a cart in a tiled floor if its kinetic friction is 20 N and the frictional force is 30 N? B.
- A 60 kg girl runs and slides down a slip n’ slide where the coefficient of friction is 0.15.a. Calculate the force of friction the girl experiences. b. What quantities would change if the girl ran and slid on a hardwood floor instead of the slip n’ slide.The 1000N cow now sits on the 5kg box.a. What is the total mass of the cow and the box?b. What is the total weight of the cow and the box?c. What is the normal force provided from the ground?Wooden box of mass 408 g is placed on the glass table. The box is just started to move by applying a force of 6.15 N. Calculate the coefficient of friction for the surface wood and glass. (Take the value of g = 9.8 m/s) Direction of motion Mass(m) a. 1.54 O b. 0.30 c. 150552.00 O d. 0.02
- A 392-N force parallel to the plane is required to support a body on an inclined plane of height 300 m and base 400 m. If the force exerted by the plane on theb body is 780N, a. what is the weight of the body? b. what is the frictional force between the body and the plane?A 392-N force parallel to the plane is required to support a body on an inclinedplane, of height 300 m and base 400 m. If the force exerted by the plane on thebody is 780N,a. what is the weight of the body?b. what is the frictional force between theSanta Clause is about to distribute his gifts, but his reindeer Rudolph is still sleepy. So, instead of flying they use the ground and cross a 20-m-long bridge. Starting from rest, Rudolph pulls Santa and his sleigh, with a force F 30° above the horizontal against a frictional force of 80N. 1. Draw an appropriate free body diagram to represent all the forces acting on Santa and his sleigh. 2. Suppose the combined mass of Santa, his sleigh, and his gifts is 500kg. What is the magnitude of Fif the acceleration of Santa and his sleigh is 1.5 meters per second squared? 3. How much work is done by Rudolph in pulling Santa and his sleigh in crossing the bridge? 4. What is the change in the kinetic energy of Santa and his sleigh after crossing the bridge? 5. How fast are they moving at the end of the bridge?
- A 10 kg box is on the horizontal surface with an exerting force of 95.3 N to start a box in the horizontal surface. a. Calculate the coefficient static friction. b. If the box continues to move with an acceleration of 1.71 m/s. What is the kinetic friction.Three cables are used to hold a hot-air balloon in place. The tension in the cable AD is 658 N. What is the tension in the cable AB? Enter using 3 significant figures. What is the tension in the cable AC? Enter using 3 significant figures. What is the vertical force V exerted by the balloon at point A? Enter using 4 significant figures.cs (1) Lab. section 1 rd My courses First Semester 2020/2021 Faculty of Arts and Sciences Physics (1) Lab. section 1 Determine the resultant of two forces if EFx= 40g.wt and EFy=100 g.wt, using method of components Select one: O a. 111.8 g.wt, 63.4° O b. 122.1 g.wt, 55° O c. 107.7 g.wt, 68.2° O d. 116.6 g.wt, 59° O e. 104.4 g.wt, 73.3° page Next pag NEXT ACTIV Jump to.. Physics lab 1 2020-202