College Physics (10th Edition)
10th Edition
ISBN: 9780321902788
Author: Hugh D. Young, Philip W. Adams, Raymond Joseph Chastain
Publisher: PEARSON
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Chapter 5, Problem 18P
|| BIO Force during a jump. An average person can reach a maximum height of about 60 em when jumping straight up from a crouched position. During the jump itself, the person's body from the knees up typically rises a distance of around 50 em. To keep the calculations simple and yet get a reasonable result, assume that the entire body rises this much during the jump. (a) With what initial speed does the person leave the ground to reach a height of 60 em? (b) Make a free-body diagram of the person during the jump. (c) In terms of this jumper's weight W, what force does the ground exert on him or her during the jump?
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Chapter 07, Problem 051
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A force F = (7.I0N)? + (4.00 N)ĵ + (5.00 N) k acts on a 1.70 kg mobile object that
moves from an initial position of di
: (3.70 m) î + (8.10 m)ĵ + (2.00 m) ê to a final
=
position of áf = (2.80 m)î + (8.50 m)} + (4.40 m) k in 1.70 s. Find (a) the work
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a dj.
(a) Number
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38.8
(b) NumberT22.8
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Chapter 07, Problem 084
Z Your answer is partially correct. Try again.
A force F = (2.51 + 8.4 + 6.4k) N :
acts on a 3.6kg object that moves in 2.3s from an initial position 1 = (3.4i + 3.6j + 3.2
3.28)
m to a final position
T2 = (5.3i + 4.0j + 8.2k ) m. Find (a) the work done on the object by the force in that time interval, (b) the average power due to the force during that time interval,
and (c) the angle between the vectors T1 and T2.
(a) Number
Units
(b) Number
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(c) Number
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(degrees)
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A body of mass m is on a horizontal plane with a coefficient of friction u, V; It moves at first speed. The object stops after traveling x distance. So which of the following is u equal to?
Chapter 5 Solutions
College Physics (10th Edition)
Ch. 5 - Can a body be in equilibrium when only one force...Ch. 5 - A clothesline is hung between two poles, and then...Ch. 5 - A man sits in a seat that is suspended from a...Ch. 5 - You push a box up a frictionless incline at a...Ch. 5 - Why is it so much more difficult to walk on icy...Ch. 5 - A car accelerates gradually to the right with...Ch. 5 - Without doing any calculations, decide whether the...Ch. 5 - A box slides up an incline, comes to rest, and...Ch. 5 - For the objects shown in Figure 5.27, will the...Ch. 5 - A woman is pushing horizontally on two boxes on a...
Ch. 5 - In a world without friction, could you (a) walk on...Ch. 5 - You can classify scales for weighing objects as...Ch. 5 - When you stand with bare feet in a wet bathtub,...Ch. 5 - A horizontal force accelerates a box across a...Ch. 5 - You slide an 800 N table across the kitchen floor...Ch. 5 - A woman wearing spiked shoes pushes two crates...Ch. 5 - A horizontal force with a magnitude P pulls two...Ch. 5 - A crate slides up an inclined ramp and then slides...Ch. 5 - A weightless spring scale is attached to two equal...Ch. 5 - Two objects are connected by a light wire as shown...Ch. 5 - A 100 N weigh: is supported by two weightless...Ch. 5 - The System shown a Figure 5.34 is released from...Ch. 5 - In the system shown in Figure 5.35, M m, the...Ch. 5 - | A 15.0 N bucket is to be raised at a constant...Ch. 5 - | In a museum exhibit, three equal weights are...Ch. 5 - | Two 25.0 N weights are suspended at oppos1te...Ch. 5 - | Two weights are hanging as shown in Figure 5.38....Ch. 5 - | An adventurous archaeologist crosses between two...Ch. 5 - || A 1130 kg car is being pulled up a frictionless...Ch. 5 - || BIO Muscles and tendons. Muscles are attached...Ch. 5 - | BIO Traction apparatus. In order to prevent...Ch. 5 - | BIO A broken thigh bone. When the thigh is...Ch. 5 - || A heavy mirror that has a width of 1 m is to be...Ch. 5 - || In a rescue, the 73 kg police officer is...Ch. 5 - || A tetherball leans against the smooth,...Ch. 5 - Find the tension in each cord in Figure 5.47 if...Ch. 5 - || Two blocks. each with weight w. are held in...Ch. 5 - || A. man pushes on a piano of mass 180 kg 50 that...Ch. 5 - || BIO Forces during chin-ups. People who do...Ch. 5 - || Force on a tennis ball. The record speed for a...Ch. 5 - || BIO Force during a jump. An average person can...Ch. 5 - || Two weights are hanging from the ceiling of an...Ch. 5 - || A large fish hangs from a spring balance...Ch. 5 - || A 750.0 kg boulder is raised from a quarry 125...Ch. 5 - || Which way and by what angle does the...Ch. 5 - | At a construction site, a 22.0 kg bucket of...Ch. 5 - || Two boxes are connected by a light string that...Ch. 5 - | An 80 N box initially at rest is pulled by a...Ch. 5 - | A 2 kg book sits at rest on a horizontal table....Ch. 5 - | At a construction site, a pallet of bricks is to...Ch. 5 - || Two crates connected by a rope of negligible...Ch. 5 - || A hockey puck leaves a players stick with a...Ch. 5 - || Stopping distance of a car. (a) If the...Ch. 5 - || An 85 N box of oranges is being pushed across a...Ch. 5 - || A stockroom worker pushes a box with mass 11.2...Ch. 5 - || The coefficient of kinetic friction between a...Ch. 5 - || Measuring the coefficients of friction. One...Ch. 5 - | With its wheels locked, a van slides down an...Ch. 5 - | BIO The Trendelberg position. In emergencies...Ch. 5 - || BIO Injuries to the spinal column. In treating...Ch. 5 - || A toboggan approaches a snowy hill moving at...Ch. 5 - || A 25.0 kg box of textbooks rests on a loading...Ch. 5 - || A person pushes on a stationary 125 N box with...Ch. 5 - || You are working for a shipping company. Your...Ch. 5 - || An atmospheric drag force with magnitude FD=...Ch. 5 - || What is the acceleration of a raindrop that has...Ch. 5 - || A bullet is fired horizontally from a...Ch. 5 - | You find that if you hang a 1.2Ekg weight from a...Ch. 5 - | An unstretched 50ring is 12.00 cm long. When...Ch. 5 - BIO Heart repair. A 5urgeon is using material from...Ch. 5 - | A 3 kg mass and a 10 kg mass are attached to...Ch. 5 - || A student measures the force required to...Ch. 5 - | Three identical 6.40 kg masses are hung by three...Ch. 5 - | A light spring having a force constant of 125...Ch. 5 - || in the previous problem, what would the answers...Ch. 5 - || Youve attached a bungee cord to a wagon and are...Ch. 5 - || Atwoods machine. A 15.0 kg load of bricks hangs...Ch. 5 - | Mountaineering. Figure 5.62 shows a technique...Ch. 5 - || Two identical, perfectly smooth 71.2 N bowling...Ch. 5 - || A 2 kg block is launched up a frictionless...Ch. 5 - BIO || The stretchy silk of a certain species of...Ch. 5 - || Block A in Figure 5.66111 weighs 60.0 N. The...Ch. 5 - || Friction in an elevator. You are riding in an...Ch. 5 - BIO || A student attaches a series of weights to a...Ch. 5 - BIO || A 65.0 kg parachutist falling vertically at...Ch. 5 - || Block A in Figure 5.68 weighs 1.20 N and block...Ch. 5 - || A block with mass m1 is placed on an inclined...Ch. 5 - || A pickup truck is carrying a toolbox, but the...Ch. 5 - || A window washer pushes his scrub brush up a...Ch. 5 - || An astronaut on the distant planet Xenon uses...Ch. 5 - || Elevator Design. You are designing an elevator...Ch. 5 - || At night while it is dark, a driver...Ch. 5 - || A block of mass m is placed against the...Ch. 5 - Friction and climbing shoes. Shoes for the sports...Ch. 5 - Friction and climbing shoes. Shoes for the sports...Ch. 5 - Friction and climbing shoes. Shoes for the sports...
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