Physics for Scientists and Engineers with Modern Physics
10th Edition
ISBN: 9781337553292
Author: Raymond A. Serway, John W. Jewett
Publisher: Cengage Learning
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Chapter 5.8, Problem 5.7QQ
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The direction of the
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A 17-year-old employee working for Southern Virginia College's (SVC) bookstore during the summer months is helping prepare for Fall sales. It's a good way to make extra money, and the teen is saving for a car.
Books from one supplier are shipped to the SVC bookstore in large crates equipped with rope handles on all sides. On one occasion, the teen momentarily pulled with a force of 707 N at an angle of 33.7° above the horizontal to accelerate a 121-kg crate of books. The coefficient of friction between the crates and the vinyl floor is 0.55.
Determine the acceleration experienced by the crate in m/s2. Use the approximation g ≈ 10 m/s2.
A 1.00 × 103-N crate is being pushed across a level floor at a constant speed by a force → F of 3.00× 102 N at an angle of 20.0° below the horizontal, as shown in Figure a. (a) What is the coefficient of kinetic friction between the crate and the floor? (b) If the 3.00 × 102-N force is instead pulling the block at an angle of 20.0° above the horizontal, as shown in Figure b, what will be the acceleration of the crate? Assume that the coefficient of friction is the same as that found in part (a).
A 16-year-old employee working for Southern Virginia College's (SVC) bookstore during the
summer months is helping prepare for Fall sales. It's a good way to make extra money, and
the teen is saving for a car.
Books from one supplier are shipped to the SVC bookstore in large crates equipped with
rope handles on all sides. On one occasion, the teen momentarily pulled with a force of
708 N at an angle of 34.2° above the horizontal to accelerate a 114-kg crate of books. The
coefficient of friction between the crates and the vinyl floor is 0.587.
Determine the acceleration experienced by the crate in m/s². Use the approximation g
10 m/s².
Answer:
m/s² (rounded to the hundredths or thousandths place)
Chapter 5 Solutions
Physics for Scientists and Engineers with Modern Physics
Ch. 5.2 - Which of the following statements is correct? (a)...Ch. 5.4 - An object experiences no acceleration. Which of...Ch. 5.4 - You push an object, initially at rest, across a...Ch. 5.5 - Suppose you are talking by interplanetary...Ch. 5.6 - (i) If a fly collides with the windshield of a...Ch. 5.8 - You press your physics textbook flat against a...Ch. 5.8 - Prob. 5.7QQCh. 5 - A certain orthodontist uses a wire brace to align...Ch. 5 - One or more external forces, large enough to be...Ch. 5 - A 3.00-kg object undergoes an acceleration given...
Ch. 5 - The average speed of a nitrogen molecule in air is...Ch. 5 - Two forces, F1=(6.00i4.00j)N and...Ch. 5 - Prob. 6PCh. 5 - Review. Three forces acting on an object are given...Ch. 5 - Prob. 8PCh. 5 - Review. The gravitational force exerted on a...Ch. 5 - Review. The gravitational force exerted on a...Ch. 5 - Review. An electron of mass 9. 11 1031 kg has an...Ch. 5 - If a man weighs 900 N on the Earth, what would he...Ch. 5 - You stand on the seat of a chair and then hop off....Ch. 5 - A brick of mass M has been placed on a rubber...Ch. 5 - Review. Figure P5.15 shows a worker poling a boata...Ch. 5 - An iron bolt of mass 65.0 g hangs from a string...Ch. 5 - A block slides down a frictionless plane having an...Ch. 5 - A bag of cement whose weight is Fg hangs in...Ch. 5 - The distance between two telephone poles is 50.0...Ch. 5 - An object of mass m = 1.00 kg is observed to have...Ch. 5 - Prob. 21PCh. 5 - An object of mass m1 = 5.00 kg placed on a...Ch. 5 - In the system shown in Figure P5.23, a horizontal...Ch. 5 - A car is stuck in the mud. A tow truck pulls on...Ch. 5 - An object of mass m1 hangs from a string that...Ch. 5 - Why is the following situation impassible? Your...Ch. 5 - Consider a large truck carrying a heavy load, such...Ch. 5 - Before 1960m people believed that the maximum...Ch. 5 - A 9.00-kg hanging object is connected by a light,...Ch. 5 - The person in Figure P5.30 weighs 170 lb. As seen...Ch. 5 - Three objects are connected on a table as shown in...Ch. 5 - You are working as a letter sorter in a U.S Post...Ch. 5 - You have been called as an expert witness for a...Ch. 5 - A block of mass 3.00 kg is pushed up against a...Ch. 5 - Prob. 35PCh. 5 - A 5.00-kg block is placed on top of a 10.0-kg...Ch. 5 - A black aluminum glider floats on a film of air...Ch. 5 - Why is the following situation impossible? A book...Ch. 5 - Two blocks of masses m1 and m2, are placed on a...Ch. 5 - A 1.00-kg glider on a horizontal air track is...Ch. 5 - An inventive child named Nick wants to reach an...Ch. 5 - Prob. 42APCh. 5 - Prob. 43APCh. 5 - Prob. 44APCh. 5 - A crate of weight Fg is pushed by a force P on a...Ch. 5 - In Figure P5.46, the pulleys and pulleys the cord...Ch. 5 - You are working as an expert witness for the...Ch. 5 - A flat cushion of mass m is released from rest at...Ch. 5 - What horizontal force must be applied to a large...Ch. 5 - Prob. 50APCh. 5 - A block of mass 2.20 kg is accelerated across a...Ch. 5 - Prob. 52CPCh. 5 - Initially, the system of objects shown in Figure...Ch. 5 - Prob. 54CPCh. 5 - In Figure P5.55, the incline has mass M and is...
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