College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Textbook Question
Chapter 4, Problem 28P
| A person drags her 65 N suitcase along the rough horizontal floor by pulling upward at 30° above the horizontal with a 50 N force. Make a free-body diagram of this suitcase.
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Chapter 4 Solutions
College Physics (10th Edition)
Ch. 4 - When a car accelerates starting from rest, where...Ch. 4 - If you step hard on the accelerator of your car....Ch. 4 - A passenger in a bus notices that a ball which has...Ch. 4 - It you hit the sidewalk with a hammer, the hammer...Ch. 4 - In a head-on collision between a compact hybrid...Ch. 4 - It would be much easier to lift a bowling ball on...Ch. 4 - A box of mass m1 is stacked on top of a second box...Ch. 4 - If your hands are wet and no towel is handy, you...Ch. 4 - It is possible to play catch with a softball in an...Ch. 4 - Newtons third law tells us that if you push a box...
Ch. 4 - If you drop a 10 lb rock and a 10 lb pillow from...Ch. 4 - Which feels a greater pull due to gravity, a heavy...Ch. 4 - When youre driving on the freeway its necessary to...Ch. 4 - The accelerations due to gravity near the surfaces...Ch. 4 - A golfer tees off and hits the ball with a mighty...Ch. 4 - Three books are at rest on a horizontal table, as...Ch. 4 - A rocket firing its engine and accelerating in...Ch. 4 - A person pushes horizontally with constant force P...Ch. 4 - Suppose the sun. including its gravity, suddenly...Ch. 4 - Three weights hang by very light wires as shown in...Ch. 4 - A woman normally weighs 125 lb. If she is standing...Ch. 4 - A worker pushes horizontally on a 2000 N...Ch. 4 - Far from any gravity, an astronaut accidentally...Ch. 4 - A worker pulls horizontally on a crate on a rough...Ch. 4 - A person pushes two Poxes with a horizontal 100 N...Ch. 4 - | A warehouse worker pushes a crate along the...Ch. 4 - | Two dogs pull horizontally on ropes attached to...Ch. 4 - | A man is dragging a trunk up the loading ramp of...Ch. 4 - | BIO Jaw injury. Due to a jaw injury, a patient...Ch. 4 - | Workmen are trying to free an SUV stuck in the...Ch. 4 - A box rests. on a frozen pond, which serves as a...Ch. 4 - | In outer space, a constant force is applied to a...Ch. 4 - || A 68.5 kg skater Moving initially at 2.40 m/s...Ch. 4 - BIO Animal dynamics. An adult 68 kg cheetah can...Ch. 4 - || A 2 kg block sits at rest on a frictionless...Ch. 4 - A dock worker applies a constant horizontal force...Ch. 4 - | (a) What is the mass of a book that weighs 320 N...Ch. 4 - Superman throws a 2400 N boulder at an adversary....Ch. 4 - | BIO (a) How many newtons does a 150 lb person...Ch. 4 - | BIO(a) An ordinary flea has a mass of 210 g. How...Ch. 4 - | BIO Calculate the mass (in SI units) of (a) a...Ch. 4 - || A standard bathroom scale is placed on an...Ch. 4 - || At the surface of Jupiters moon lo, the...Ch. 4 - || A scientific instrument that weighs 85.2 N on...Ch. 4 - || Planet X! When venturing forth on Planet X, you...Ch. 4 - | You drag a heavy box along a rough horizontal...Ch. 4 - || A person pushes two boxes with a horizontal...Ch. 4 - | The upward normal force exerted by the floor is...Ch. 4 - | A person throws a 2.5 lb stone into the air with...Ch. 4 - | A tennis ball traveling horizontally at 22 m/s...Ch. 4 - || Two crates, A and S, sit at rest side by side...Ch. 4 - || A ball is hanging from a long string that is...Ch. 4 - | A person drags her 65 N suitcase along the rough...Ch. 4 - || A factory worker pushes horizontally on a 250 N...Ch. 4 - || A dock worker pulls two boxes connected by a...Ch. 4 - || A hospital order y pushes horizontally on two...Ch. 4 - | A uniform 25.0 kg chain 2.00 m long supports a...Ch. 4 - | A 60 kg circus performer is climbing up a rope...Ch. 4 - | A 275 N bucket is lifted with an acceleration of...Ch. 4 - || BIO Human biomechanics. World-class sprinters...Ch. 4 - || A chair of mass 12.0 kg is sitting on the...Ch. 4 - || BIO Human biomechanics. The fastest pitched...Ch. 4 - || You walk into an elevator, step onto a scale,...Ch. 4 - || A woman is standing in an elevator holding her...Ch. 4 - || An advertisement claims that a particular...Ch. 4 - || A rifle shoots a 4.20 g bullet out of its...Ch. 4 - || A parachutist relies on air resistance (mainly...Ch. 4 - As shown in Figure 4.40, force vector F1 always...Ch. 4 - || A spacecraft descends vertically near the...Ch. 4 - || BIO A standing vertical Jump, NFL player Gerald...Ch. 4 - || You leave the doctors office after your annual...Ch. 4 - || BIO Human biomechanics. The fastest served...Ch. 4 - || Extraterrestrial physics. You have landed on an...Ch. 4 - || Jumping to the ground. A 75.0 kg man steps off...Ch. 4 - BIO Forces on a dancers body. Dancers experience...Ch. 4 - BIO Forces on a dancers body. Dancers experience...Ch. 4 - BIO Forces on a dancers body. Dancers experience...Ch. 4 - BIO Forces on a dancers body. Dancers experience...
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- A crate of weight Fg is pushed by a force P on a horizontal floor as shown in Figure P5.45. The coefficient of static friction is s, and P is directed at angle below the horizontal. (a) Show that the minimum value of P that will move the crate is given by P=sFgsec1stan Figure P5.45 (b) Find the condition on in terms of s, for which motion of the crate is impossible for any value of P.arrow_forwardA bag of cement whose weight is Fg hangs in equilibrium from three wires as shown in Figure P5.18. Two of the wires make angles 1 and 2 with the horizontal. Assuming the system is in equilibrium, show that the tension in the left-hand wire is T1=Fgcos2sin(1+2) Figure P5.18arrow_forward(a) Find the tension in each cable supporting the 6.00 102-N cat burglar in Figure P4.35. (b) Suppose the horizontal cable were reattached higher up on the wall. Would the tension in the other cables increase, decrease, or stay the same? Why? Figure P4.35arrow_forward
- . Under certain conditions, the human body can safely withstand an acceleration of 10 g. (a) What net force would have to act on someone with mass of 50 kg to cause this acceleration? (b) Find the weight of such a person in pounds then convert the answer to (a) to pounds.arrow_forwardA crate of weight Fg is pushed by a force P on a horizontal floor as shown in Figure P4.83. The coefficient of static friction is s, and P is directed at angle below the horizontal. (a) Show that the minimum value of P that will move the crate is given by P=sFgsec1stan (b) Find the condition on in terms of , for which motion of the crate is impossible for any value of P. Figure P4.83arrow_forward(a) What is the resultant force exerted by the two cables supporting the traffic light in Figure P4.75? (b) What is the weight of the light? Figure P4.75arrow_forward
- Two blocks, each of mass m, are hung from the ceiling of an elevator as in Figure P5.43. The elevator has an upward acceleration a. The strings have negligible mass. (a) Kind the tensions T1 and T2 in the upper and lower strings in terms of m, a. and g. (b) Compare the two tensions and determine which string would break first if a is made sufficiently large. (c) What are the tensions if the cable supporting the elevator breaks?arrow_forwardThe coefficient of static friction between the 3.00-kg crate and the 35.0 incline of Figure P4.31 is 0.300. What minimum force F must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline? Figure P4.31arrow_forwardAn elevator filled with passengers has a mass of 1.70103kg . (a) The elevator accelerates upward from rest at a rate of 1.20m/s2for 1.50 s. Calculate the tension in the cable supporting the elevator. (b) The elevator continues upward at constant velocity for 8.50 s. What is the tension in the cable during this time? (c) The elevator decelerates at a rate of 0.600 in/s2 for 0.600m/s2 3.00 s. What is the tension in the cable during deceleration? (d) How high has the elevator moved above its original starting point, and what is its final velocity?arrow_forward
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Drawing Free-Body Diagrams With Examples; Author: The Physics Classroom;https://www.youtube.com/watch?v=3rZR7FSSidc;License: Standard Youtube License