COLLEGE PHYSICS
2nd Edition
ISBN: 9781464196393
Author: Freedman
Publisher: MAC HIGHER
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Chapter 4, Problem 88QAP
To determine
The reading on the scale.
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A pilot performs an evasive maneuver by diving
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When a 54.0-kg crate is pushed across a frictionless horizontal floor with a force of
240.0 N, directed 20.0° below the horizontal, the magnitude of the aceleration of
the crate is m/s².
20.0
4) Three boxes are pulled along a horizontal frictionless floor by a constant horizontal pull P. The boxes are connected by very light horizontal strings having tensions T1 and T2 as shown in the figure. Which of the following statements about the tensions is correct? (There could be more than one correct choice.)
O AT1>T2
OB.T1+T2=P
OCT1=P
O D.T2=P
O ET2>T1
Chapter 4 Solutions
COLLEGE PHYSICS
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- A 30.0-kg object experiences a drag force due to air resistance with a magnitude proportional to thesquare of its speed. The object falls with an acceleration of 4.00 m/s2 downward when it is fallingdownward at 70.0 m/s. What is its terminal speed?A) 91.0 m/s B) 110 m/s C) 172 m/s D) 157 m/s E) 108 m/sarrow_forward6) Problem 1: A 76-kg man stands on a bathroom scale in an elevator that accelerates upwards from rest to 11 m/s in 2.00 s. Calculate the scale reading, in newtons, during this process (The scale exerts an upward force on him equal to its reading.)arrow_forward2-13 Determine the horizontal and vertical components of each force shown in Figure P2-13. A- P= 2* P= 20 lbi 20° 50 120 P= 25 lb Figure P2-13a Figure P2-13b Flgure P2-13carrow_forward
- 1.) An athlete slides down from rest 40.0 meter along an icy hill which is 35 degrees from the horizontal. He then continues sliding on the level ice. a) If the coefficient of kinetic friction between the athlete and ice is 0.20 (neglect air resistance) find speed (m/s) of athlete at the foot of the plane. b) ) find the distance (m) from the foot of the plane to the point where he has landed to the level icearrow_forwardTwo people, each weighing 70 kg, are traveling in an elevator. One stands on the elevator floor and the other hangs from a rope attached to the elevator ceiling. Compare the acceleration a of the first person to the acceleration a 'of the second. a) The 2 are equal and opposite. b) The 2 are the same and have the same address c) The acceleration a is greater than a ', but the 2 have the same direction d) The acceleration a is greater than a ', but they have opposite directions. e) The acceleration a is less than a 'but they have the same direction.arrow_forwardMedia •2-33. If F, = 600 N and $ = 30°, determine the magnitude of the resultant force acting on the eyebolt and its direction measured clockwise from the positive x axis. 60° F = 500 N F = 450 N >arrow_forward
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