College Physics
7th Edition
ISBN: 9780321601834
Author: Jerry D. Wilson, Anthony J. Buffa, Bo Lou
Publisher: Addison-Wesley
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Chapter 4, Problem 33E
(a)
To determine
The force which accelerate the sprinter.
(b)
To determine
The initial acceleration of the sprinter.
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Students have asked these similar questions
m₁
V2
m
For the three vectors shown, the magnitude of vector A is 5 [m], the magnitude of vector B is 7 [m],
and the magnitude of vector C is 4 [m].
(a) Find the x- and y-components of the resultant vector Ŕ = Ả + B + Č. Do not forget to include
the directional unit vector for each component.
(b) What is the magnitude of the resultant vector Ŕ?
(c) In what direction is the resultant vector Ŕ pointing? Write the answer in terms of an angle
with the proper indication of the direction.
60.0 degree
20.0 degree
+x
C
Exercise No 2
Four forces are exerted on the object shown in the figure. (Forces are measured in newtons,
abbreviated N.) The net force on the object is Fnet = F₁ + F₂ + F3 + F₁ = 4.0î N. What are (a) F3 and
(b) F₁? Give your answers in component form.
y
F3
نیا
F₁
5.0 N
6.0 N
20°
F₂
x
Chapter 4 Solutions
College Physics
Ch. 4 - Prob. 1MCQCh. 4 - A force (a) always produces motion, (b) is a...Ch. 4 - If an object is moving at constant velocity, (a)...Ch. 4 - If the net force on an object is zero, the object...Ch. 4 - The force required to keep a rocket ship moving at...Ch. 4 - Prob. 6MCQCh. 4 - Prob. 7MCQCh. 4 - The weight of an object is directly proportional...Ch. 4 - Prob. 9MCQCh. 4 - A brick hits a glass window. The brick breaks the...
Ch. 4 - Prob. 11MCQCh. 4 - Prob. 12MCQCh. 4 -
The condition(s) for translational equilibrium is...Ch. 4 - Prob. 14MCQCh. 4 - Prob. 15MCQCh. 4 - Prob. 16MCQCh. 4 - Prob. 17MCQCh. 4 - Prob. 1CQCh. 4 - Prob. 2CQCh. 4 - Prob. 3CQCh. 4 - Prob. 4CQCh. 4 - Prob. 5CQCh. 4 - The following is an old trick (Fig. 4.28). If a...Ch. 4 - Prob. 7CQCh. 4 - A student weighing 600 N crouches on a scale and...Ch. 4 - An astronaut has a mass of 70 kg when measured on...Ch. 4 -
In general, this chapter has considered forces...Ch. 4 - Prob. 11CQCh. 4 - Prob. 12CQCh. 4 - Prob. 13CQCh. 4 - Prob. 14CQCh. 4 - Prob. 16CQCh. 4 - Prob. 17CQCh. 4 -
Identify the direction of the friction force in...Ch. 4 - Prob. 19CQCh. 4 - Prob. 20CQCh. 4 - Prob. 21CQCh. 4 - Prob. 22CQCh. 4 - Prob. 23CQCh. 4 - Which has more inertia, 20 cm3 of water or 10 cm3...Ch. 4 - Prob. 2ECh. 4 - In Exercise 2, if the 35-N force acted downward at...Ch. 4 -
A net force of 4.0 N gives an object an...Ch. 4 - Prob. 5ECh. 4 - Prob. 6ECh. 4 - A 5.0-kg block at rest on a frictionless surface...Ch. 4 - (a) You are told that an object has zero...Ch. 4 - A fish weighing 25 lb is caught and hauled onto...Ch. 4 - A 1.5-kg object moves up the y-axis at a constant...Ch. 4 - Three horizontal forces (the only horizontal ones)...Ch. 4 - Prob. 12ECh. 4 - Prob. 13ECh. 4 - Prob. 14ECh. 4 - IE ● A 6.0-kg object is brought to the Moon, where...Ch. 4 - A gun is fired and a 50-g bullet is accelerated to...Ch. 4 - Prob. 17ECh. 4 - Prob. 18ECh. 4 - Prob. 19ECh. 4 - Prob. 20ECh. 4 - Prob. 21ECh. 4 - Prob. 22ECh. 4 - Prob. 23ECh. 4 - Prob. 24ECh. 4 - An object (mass 10.0 kg) slides upward on a...Ch. 4 - In an emergency stop to avoid an accident, a...Ch. 4 - Prob. 27ECh. 4 - A force of 10 N acts on two blocks on a...Ch. 4 - Prob. 29ECh. 4 - In a pole-sliding game among friends, a 90-kg man...Ch. 4 - A book is sitting on a horizontal surface. (a)...Ch. 4 - In an Olympic figure-skating event, a 65-kg male...Ch. 4 -
A sprinter of mass 65.0 kg starts his race by...Ch. 4 - Jane and John, with masses of 50 kg and 60 kg,...Ch. 4 - Prob. 35ECh. 4 - A 75.0-kg person is standing on a scale in an...Ch. 4 - Prob. 37ECh. 4 - Prob. 38ECh. 4 - The weight of a 500-kg object is 4900 N. (a) When...Ch. 4 - A boy pulls a box of mass 30 kg with a force of 25...Ch. 4 - Prob. 41ECh. 4 - Prob. 42ECh. 4 - Prob. 43ECh. 4 - Prob. 44ECh. 4 - Prob. 45ECh. 4 - Assuming ideal frictionless conditions for the...Ch. 4 - Prob. 47ECh. 4 -
A55-kg gymnast hangs vertically from a pair of...Ch. 4 - A physicist’s car has a small lead weight...Ch. 4 - A 10-kg mass is suspended as shown in Fig. 4.41....Ch. 4 - Prob. 51ECh. 4 - Prob. 52ECh. 4 - Prob. 53ECh. 4 - A horizontal force of 40 N acting on a block on a...Ch. 4 - The Atwood machine consists of two masses...Ch. 4 - Prob. 56ECh. 4 - Prob. 57ECh. 4 - Prob. 58ECh. 4 - Prob. 59ECh. 4 - In the frictionless apparatus shown in Fig. 4.43,...Ch. 4 - In the ideal setup shown in Fig. 4.43, m1 = 3.0 kg...Ch. 4 - A20-kg box sits on a rough horizontal surface....Ch. 4 - Prob. 63ECh. 4 - Prob. 64ECh. 4 - Prob. 65ECh. 4 - Prob. 66ECh. 4 - A 1500-kg automobile travels at 90 km/h along a...Ch. 4 - Prob. 68ECh. 4 - Prob. 69ECh. 4 - Prob. 70ECh. 4 - Prob. 71ECh. 4 - Prob. 72ECh. 4 - Suppose the slope conditions for the skier shown...Ch. 4 - Prob. 74ECh. 4 - A block that has a mass of 2.0 kg and is 10 cm...Ch. 4 - In the apparatus shown in Fig. 4.46, m1 = 10 kg...Ch. 4 - In loading a fish delivery truck, a person pushes...Ch. 4 -
An object (mass 3.0 kg) slides upward on a...Ch. 4 - For the apparatus shown in Fig. 4.40, what is the...Ch. 4 - Prob. 81ECh. 4 - Prob. 82ECh. 4 - Prob. 83ECh. 4 - Prob. 84ECh. 4 - Prob. 85ECh. 4 - Prob. 86ECh. 4 - Prob. 87ECh. 4 - Prob. 88E
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