College Physics
11th Edition
ISBN: 9781305952300
Author: Raymond A. Serway, Chris Vuille
Publisher: Cengage Learning
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Identify all the forces acting on the object and draw a free-body diagram of the object.
Your car is skidding to a stop from a high speed.
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- When a parachute opens, the air exerts a large drag force on it. This upward force is initially greater than the weight of the sky diver and, thus, slows him down. Suppose the weight of the sky diver is 986 N and the drag force has a magnitude of 1049 N. The mass of the sky diver is 101 kg. Take upward to be the positive direction. What is his acceleration, including sign? Type to search 7 Number e Textbook and Media Save for Later 2 +6.24 W Ri 3 E C $ 4 " Units R % 5 m/s^2 T V 6 & 7 7 H * Attempts: 2 of 3 used Submit Answer 8 81°F Partly sunny 0 K 2:41 6/2/arrow_forwardA mover is pushing horizontally on a very large box with a force of 850 N, but he can’t get it to move. Draw a free body diagram for the box. Draw a free body diagram for the box and the mover. With how much force is the box pushing back on the mover?arrow_forwardIdentify all the forces acting on the object and draw a free-body diagram of the object. A skydiver has his parachute open and is floating downward through the air at a constant speed.arrow_forward
- Please asaparrow_forwardIn Example 5.7, we pushed on two blocks on a table. Suppose three blocks are in contact with one another on a frictionless, horizontal surface as shown in the figure below. A horizontal force F is applied to m₁. Take m₁ = 2.00 kg, m₂ = 3.00 kg, m3 = 5.10 kg, and F = 16.0 N. (a) Draw a separate free-body diagram for each block. Choose File No file chosen This answer has not been graded yet. magnitude direction m₁ (b) Determine the acceleration of the blocks. m/s² m₂ m₂ |---Select--- ✓ (c) Find the resultant force on each block. block 1 N block 2 N block 3 N (d) Find the magnitudes of the contact forces between the blocks. between block 1 and 2 N N between block 2 and 3 Need Help? (e) You are working on a construction project. A coworker is nailing up plasterboard on one side of a light partition, and you are on the opposite side, providing "backing" by leaning against the wall with your back pushing on it. Every hammer blow makes your back sting. The supervisor helps you put a heavy…arrow_forwardThe class I'm taking is physics for scientists and engineers! I am completely stuck. Need help. I have attached the problem. Please view BOTH attachments before answering. If you can please explain your answer so I can fully understand. Thank you!arrow_forward
- You walk into an elevator, step onto a scale, and push the "up" button. You recall that your normal weight is 625 N. Draw a free-body diagram. When the elevator has an upward acceleration of magnitude 2.50 m/s2, what does the scale read? If you hold a 2.25 kg package by a light vertical string, what will be the tension in this string when the elevator accelerates as in the previous part?arrow_forwardDirections: Draw the free-body diagram of the following situations presented. Situation #1: A rightward force is applied to a crate to push it across the floor at a constant speed. Ignore air resistance. Situation #2: A physics book glides to the right across a smooth table at a constant speed. Ignore air resistance.arrow_forwardA crate sits on a rough surface. Using a rope, a man applies a force to the crate as shown in the figure. The force is not enough to move the crate, however, and it remains stationary. If necessary, use Fs for the force of static friction, and Fk as the force of kinetic friction. Draw the Free Body Diagram for the crate.arrow_forward
- a 5kg stoplight is hanging from wires that each make an angle of 20 degrees with the vertical. Draw a free body diagram for the forces acting on the stoplight.arrow_forwardIdentify all the forces acting on the object and draw a free-body diagram of the object. You are driving on the highway, and you come to a steep downhill section. As you roll down the hill, you take your foot off the gas pedal. You can ignore friction, but you can’t ignore air resistance.arrow_forward
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