A box experiences the followingforces: a rightward force of 50 N,a leftward force of 50 N, anupward force of 100 N, and adownward force of 100 N. Whichdiagram below is the correct freebody diagram for this scenario?50 N100 N100 N150 N100 N50 N100 N50 N50 N100 N100 N 50 N100 N100 N50 N50 Na.b.c.d.Select an answerWhat is the net force on the box?Fnet =unitIf the box has a mass of 2 kg, whatis the acceleration on the box?a =unit

A box experiences the following forces: a rightward force of 50 N, a leftward force of 50 N, an upward force of 100 N, and a downward force of 100 N. Which diagram below is the correct free body diagram for this scenario? 50 N 100 N 100 N 50 N 100 N 100 N 100 N 50 N 50 N 100 N 50 N 50 N 100 N 100 N 50 N 50 N a. b. C. d.

A box experiences the following forces: a rightward force of 50 N, a leftward force of 50 N, an upward force of 100 N, and a downward force of 100 N. Which diagram below is the correct free body diagram for this scenario? 50 N 100 N 100 N 50 N 100 N 100 N 100 N 50 N 50 N 100 N 50 N 50 N 100 N 100 N 50 N 50 N a. b. C. d.

Physics for Scientists and Engineers, Technology Update (No access codes included)

9th Edition

ISBN:9781305116399

Author:Raymond A. Serway, John W. Jewett

Publisher:Raymond A. Serway, John W. Jewett

Chapter5: The Laws Of Motion

Section: Chapter Questions

Problem 5.19CQ: Give reasons for the answers to each of the following questions: (a) Clan a normal force be...

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Construct Your Own Problem Consider an astronaut in deep space cut free from her space ship and needing to get back to it. The astronaut has a few packages that she can throw away to move herself toward the ship. Construct a problem in which you calculate the time it takes her to get back by throwing all the packages at one time compared to throwing them one at a time. Among the things to be considered are the masses involved, the force she can exert on the packages through some distance, and the distance to the ship.
Give reasons for the answers to each of the following questions: (a) Clan a normal force be horizontal? (b) Can a normal force be directed vertically downward? (c) Consider a tennis ball in contact with a stationary floor and with nothing else. Can the normal force be different in magnitude from the gravitational force exerted on the ball? (d) Can the force exerted by the floor on the hall be different in magnitude from the force the ball exerts on the floor?
As shown in Figure CQ5.22, student A, a 55-kg girl, sits on one chair with metal runners, at rest on a classroom floor. Student B, an 80-kg boy, sits on an identical chair. Both students keep their feet off the floor. A rope runs from student As hands around a light pulley and then over her shoulder to the hands of a teacher standing on the floor behind her. The low-friction axle of the pulley is attached to a second rope held by student B. All ropes run parallel to the chair runners. (a) If student A pulls on her end of the rope, will her chair or will Bs chair slide on the floor? Explain why. (b) If instead the teacher pulls on his rope end, which chair slides? Why this one? (c) If student B pulls on his rope, which chair slides? Why? (d) Now the teacher ties his end of the rope to student As chair. Student A pulls on the end of the rope in her hands. Which chair slides and why? Figure CQ5.22
Integrated Concepts A basketball player jumps straight up for a ball. To do this, he lowers his body 0.300 m and then accelerates through this distance by forcefully straightening his legs. This player leaves the floor with a vertical velocity sufficient to carry him 0.900 m above the floor. (a) Calculate his velocity when he leaves the floor. (b) Calculate his acceleration while he is straightening his legs. He goes from zero to the velocity found in part (a) in a distance of 0.300 m. (c) Calculate the force he exerts on the floor to do this, given that his mass is 110 kg.
The leg and cast in Figure P4.40 weigh 220 N (w1). Determine the weight w2 and the angle needed so that no force is exerted on the hip joint by the leg plus the cast. Figure P4.40
A can is resting on a table. What is the reaction force to the weight of the can? Explain why.A. the normal force exerted by the table on the can B. the gravitational force exerted by the Earth on the table C. the gravitational force exerted by the can on Earth D. the force exerted by the can on the table
Three boxes in contact slide side-by-side on a smooth, friction-less, horizontal floor. Their masses are 5.0-kg, 3.0-kg, and 2.0-kg, with the 3.0-kg box in the center. A force of 50 N pushes on the 5.0-kg box, which pushes against the other two boxes. A. Draw the free-body diagrams for each of the boxes. B. What magnitude force does the 3.0-kg box exert on the 5.0-kg box? C. What magnitude force does the 3.0-kg box exert on the 2.0-kg box?
2. Barry carries his tray of food to his favorite cafeteria table for lunch. The 0.50 m long trayhas a mass of 0.20 kg and holds a 0.40 kg plate of food 0.20 m from the right edge.Barry holds the tray by the left edge with one hand, using his thumb as the fulcrum, andpushes up 0.10 m from the fulcrum with his finger tips.a. How much upward force must his finger tips exert to keep the tray level? b. How might Barry make the tray easier to carry if he chooses to use only one hand?
a 100 kg astronaut (including the spacesuit) becomes untethered during a spacewalk and drifts to a distance of 10m from the mother ship. To get back to the ship, he throws his 2.5 kg tool kit away with an acceleration of 6.0 m/s^-2 which acts over 0.50 s. a. how does throw the took kit away helps the astronaut in this situation. b. What force act on the astronaut and the tool kit? c. With what speed will the astronaut drift to the mother ship d. How long will it take for him to reach the ship?
An illustration shows an overhead view of a car as it approaches a fork in the road. The car is oriented such that it is directed toward the top of the illustration. A force F1 extends from the nose of the car and points along the left-side forked road at an angle of 10° measured counterclockwise from the car's initial direction. A force F2 extends from the nose of the car and points along the right-side forked road at an angle of 30° measured clockwise from the car's initial direction. Two forces are applied to a car in an effort to move it, as shown in the figure below. (Let F1 = 440 N and F2 = 366 N. Assume up and to the right are in the positive directions.) (a) What is the resultant vector of these two forces? (b) If the car has a mass of 3,000 kg, what acceleration does it have? Ignore friction.
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Two blocks, which can be modeled as point masses are connected by a massless string which passes through a hole in a frictionless table. A tube extends out of the hole in the table so that the portion of the string between the hole and M1 remains parallel to the top of the table l. The blocks have masses M1 = 1.2 kg and M2 = 2.5 kg. Block 1 is a distance r = 0.85 m from the center of the frictionless surface. Block 2 hangs vertically underneath Assume that block two, M2 does not move relative to the table and that the block one M1 is rotating around the table. What is the speed of block one, M1, in meters per second?