Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
12th Edition
ISBN: 9781259587399
Author: Eugene Hecht
Publisher: McGraw-Hill Education
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Chapter 4, Problem 32SP
In Fig. 4-16, the system is at rest. (a) What is the maximum value that
![Chapter 4, Problem 32SP, 4.32 [III] In Fig. 4-16, the system is at rest. (a) What is the maximum value that can have if the](https://content.bartleby.com/tbms-images/9781259587399/Chapter-4/images/87399-4-32sp-question-digital_image135.png)
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A person , sunbathing on a warm day, is lying horizontally onthe deck of a boat. Her mass is 59 kg, and the coefficient of staticfriction between the deck and her is 0.70. Assume that the person ismoving horizontally, and that the static frictional force is the onlyforce acting on her in this direction .
(a) What is the magnitude of the static frictional force when the boat moves with a constant velocity of +8.0 m/s?
(b) The boat speeds up with an acceleration of 1.6 m/s2 and she does not slip with respect to the deck . What is the magnitude of the static frictional force that acts on her?
(c) What is the magnitude of the maximum acceleration the boat can have before she begins to slip relative to the deck ?
A large box of mass 11.4 kg sits on a ramp that makes an angle of 30.1 degrees with the horizontal. The surface of the ramp is rough and the
coefficients of static and kinetic friction are given as 0.56 and 0,38, respectively. We exert a force up the ramp (parallel to the ramp surface) so
that the box does not move.
Calculate the maximum and the minimum magnitude of the force we can exert so that the box does not move.
Enter the difference between the maximum and the minimum force values here: Fmax-Fmin (in Newtons). On your paper, show all the forces
on free-body diagrams, clearly show your work, your derivation and calculations. Make sure to include your physics-based reasoning.
(b) The coefficient of kinetic friction between a 40 kg crate and the ware-
house floor is 70% of the corresponding coefficient of static friction.
The crate falls off a forklift that is moving at 3 m/s and then slides
along the warehouse floor for a distance of 2.5 m before coming to
rest. What is the coefficient of static friction between the crate and
the floor?
Chapter 4 Solutions
Schaum's Outline of College Physics, Twelfth Edition (Schaum's Outlines)
Ch. 4 - 4.9 [I] A person stands on a scale, which then...Ch. 4 - 4.10 [I] Two evenly matched teams of youngsters...Ch. 4 - 4.11 [I] A rope is tied to a hook fastened to a...Ch. 4 - 4.12 [I] An essentially weightless pulley that is...Ch. 4 - 4.13 [I] An essentially weightless rope is slung...Ch. 4 - 4.14 [I] An essentially weightless rope is slung...Ch. 4 - 4.15 [I] A 2.00-kg block rests on a frictionless...Ch. 4 - 4.16 [I] The load in Fig. 4-7 is hanging at rest....Ch. 4 - 4.17 [I] (a) A 600-N load hangs motionlessly in...Ch. 4 - 4.18 [I] For the situation shown in Fig. 4-9, find...
Ch. 4 - 19. The following coplanar forces pull on a ring:...Ch. 4 - 4.20 [II] In Fig. 4-10, the pulleys are...Ch. 4 - 4.21 [II] Suppose in Fig. 4-10 is 500 N. Find the...Ch. 4 - 4.22 [I] If in Fig. 4-11 the friction between the...Ch. 4 - 4.23 [II] The system in Fig. 4-11 remains at rest...Ch. 4 - 24. Find the normal force acting on the block in...Ch. 4 - 25. The block depicted Fig. 4-12(a) slides with...Ch. 4 - 26. The block shown in Fig. 4-12(b) slides at a...Ch. 4 - 27. The block in Fig. 4-12(c) just begins to slide...Ch. 4 - 4.28 [II] If in the equilibrium situation shown...Ch. 4 -
29. Refer to the equilibrium situation shown in...Ch. 4 - 4.30 [III] The hanging object in Fig. 4-14 is in...Ch. 4 - 31. The pulleys shown in Fig. 4-15 have negligible...Ch. 4 - 4.32 [III] In Fig. 4-16, the system is at rest....Ch. 4 - 4.33 [III] The block in Fig. 4-16 is just on the...
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- The coefficient of kinetic friction between a box and the floor is μk = 0.14 and the coefficient of static friction is μs = 2.0μk. Calculate the ratio of static to kinetic friction force if m = 8 kg.arrow_forward25 sSM www Block B in Fig. 6-31 weighs 711 N. The coefficient of static friction between block and Knot- table is 0.25; angle is 30°; assume that the cord between B and the B. knot is horizontal. Find the maxi- mum weight of block A for which the system will be stationary.arrow_forwardA horizontal force of 200 N is used to push a 50.0-kg packing crate a distance of 6.00 m on a rough horizontal surface. If the crate moves at constant speed, the coefficient of kinetic friction between the crate and surface.arrow_forward
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