Fundamentals of Physics, Volume 1, Chapter 1-20
10th Edition
ISBN: 9781118233764
Author: David Halliday
Publisher: WILEY
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Chapter 6, Problem 40P
In downhill speed skiing a skier is retarded by both the air drag force on the body and the kinetic frictional force on the skis. (a) Suppose the slope angle is θ = 40.0°, the snow is dry snow with a coefficient of kinetic friction µk = 0.0400, the mass of the skier and equipment is m = 85.0 kg, the cross-sectional area of the (tucked) skier is A = 1.30 m2, the drag coefficient is C = 0.150, and the air density is 1.20 kg/m3, (a) What is the terminal speed? (b) If a skier can vary C by a slight amount dC by adjusting, say, the hand positions, what is the corresponding variation in the terminal speed?
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Chapter 6 Solutions
Fundamentals of Physics, Volume 1, Chapter 1-20
Ch. 6 - In Fig. 6-12, if the box is stationary and the...Ch. 6 - Prob. 2QCh. 6 - In Fig. 6-13, horizontal force F1 of magnitude 10...Ch. 6 - In three experiments, three different horizontal...Ch. 6 - If you press an apple crate against a wall so hard...Ch. 6 - In Fig. 6-14, a block of mass m is held stationary...Ch. 6 - Reconsider Question 6 but with the force F now...Ch. 6 - In Fig. 6-15, a horizontal force of 100 N is to be...Ch. 6 - Prob. 9QCh. 6 - Prob. 10Q
Ch. 6 - A person riding a Ferris wheel moves through...Ch. 6 - During a routine flight in 1956, test pilot Tom...Ch. 6 - A box is on a ramp that is at angle to the...Ch. 6 - The floor of a railroad flatcar is loaded with...Ch. 6 - In a pickup game of dorm shuffleboard, students...Ch. 6 - SSM WWW A bedroom bureau with a mass of 45 kg,...Ch. 6 - A slide-loving pig slides down a certain 35 slide...Ch. 6 - GO A 2.5 kg block is initially at rest on a...Ch. 6 - A baseball player with mass m 79 kg, sliding into...Ch. 6 - SSM ILW A person pushes horizontally with a force...Ch. 6 - The mysterious sliding stones. Along the remote...Ch. 6 - GO A 3.5 kg block is pushed along a horizontal...Ch. 6 - Figure 6-20 shows an initially stationary block of...Ch. 6 - SSM A 68 kg crate is dragged across a floor by...Ch. 6 - In about 1915, Henry Sincosky of Philadelphia...Ch. 6 - A worker pushes horizontally on a 35 kg crate with...Ch. 6 - Figure 6-22 shows the cross section of a road cut...Ch. 6 - The coefficient of static friction between Teflon...Ch. 6 - A loaded penguin sled weighing 80 N rests on a...Ch. 6 - In Fig. 6-24, a force P acts on a block weighing...Ch. 6 - GO You testify as an expert witness in a case...Ch. 6 - A 12 N horizontal force F pushes a block weighing...Ch. 6 - GO In Fig. 6-27, a box of Cheerios mass mC = 1.0...Ch. 6 - An initially stationary box of sand is to be...Ch. 6 - GO In Fig. 6-23, a sled is held on an inclined...Ch. 6 - When the three blocks in Fig. 6-29 are released...Ch. 6 - A 4.10 kg block is pushed along a floor by a...Ch. 6 - SSM WWW Block B in Fig. 6-31 weighs 711 N. The...Ch. 6 - GO Figure 6-32 shows three crates being pushed...Ch. 6 - GO Body A in Fig. 6-33 weighs 102 N, and body B...Ch. 6 - In Fig. 6-33, two blocks are connected over a...Ch. 6 - GO In Fig. 6-34, blocks A and B have weights of 44...Ch. 6 - A toy chest and its contents have a combined...Ch. 6 - SSM Two blocks, of weights 3.6 N and 7.2 N, are...Ch. 6 - GO A block is pushed across a floor by a constant...Ch. 6 - SSM A 1000 kg boat is traveling at 90 km/h when...Ch. 6 - GO In Fig. 6-37, a slab of mass m1= 40 kg rests on...Ch. 6 - ILW The two blocks m = 16 kg and M = 88 kg in Fig....Ch. 6 - The terminal speed of a sky diver is 160 km/h in...Ch. 6 - Continuation of Problem 8. 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