A jet with mass m = 1.3 x 105 kg jet accelerates down the runway for takeoff at 1.5 m/s². 1) What is the net horizontal force on the airplane as it accelerates for takeoff? 195000 N Submit 2) What is the net vertical force on the airplane as it accelerates for takeoff? N Submit 123500 3) Once off the ground, the plane climbs upward for 20 seconds. During this time, the vertical speed increases from zero to 19 m/s, while the horizontal speed increases from 80 m/s to 92 m/s. What is the net horizontal force on the airplane as it climbs upward? 78000 N Submit 4) What is the net vertical force on the airplane as it climbs upward? N Submit 5) After reaching cruising altitude, the plane levels off, keeping the horizontal speed constant, but smoothly reducing the vertical speed to zero, in 14 seconds. What is the net horizontal force on the airplane as it levels off? 0 N Submit + 6) What is the net vertical force on the airplane as it levels off? N Submit

A jet with mass m = 1.3 x 105 kg jet accelerates down the runway for takeoff at 1.5 m/s². 1) What is the net horizontal force on the airplane as it accelerates for takeoff? 195000 N Submit 2) What is the net vertical force on the airplane as it accelerates for takeoff? N Submit 123500 3) Once off the ground, the plane climbs upward for 20 seconds. During this time, the vertical speed increases from zero to 19 m/s, while the horizontal speed increases from 80 m/s to 92 m/s. What is the net horizontal force on the airplane as it climbs upward? 78000 N Submit 4) What is the net vertical force on the airplane as it climbs upward? N Submit 5) After reaching cruising altitude, the plane levels off, keeping the horizontal speed constant, but smoothly reducing the vertical speed to zero, in 14 seconds. What is the net horizontal force on the airplane as it levels off? 0 N Submit + 6) What is the net vertical force on the airplane as it levels off? N Submit

College Physics

1st Edition

ISBN:9781938168000

Author:Paul Peter Urone, Roger Hinrichs

Publisher:Paul Peter Urone, Roger Hinrichs

Chapter4: Dynamics: Force And Newton's Laws Of Motion

Section: Chapter Questions

Problem 52PE: (a) What is the strength of the weak nuclear force relative to the strong nuclear force? (b) What is...

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A 75.0-kg man stands on a bathroom scale in an elevator that accelerates from rest to 30.0 m/s in 2.00 s. (a) Calculate the scale reading in newtons and compare it with her weight. (The scale exerts an upward force on her equal to its reading.) (b) What Is unreasonable about the result? (c) Which premise is unreasonable, or which premises are inconsistent?
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Give reasons for the answers to each of the following questions: (a) Clan a normal force be horizontal? (b) Can a normal force be directed vertically downward? (c) Consider a tennis ball in contact with a stationary floor and with nothing else. Can the normal force be different in magnitude from the gravitational force exerted on the ball? (d) Can the force exerted by the floor on the hall be different in magnitude from the force the ball exerts on the floor?
(a) A cat with a mass of 850 kg in moving to the right with a constant speed of 1.44 m/s. What is the total force on the cat ? (b) What is the total force on the cat if it is moving to the left?
(a) What is the strength of the weak nuclear force relative to the strong nuclear force? (b) What is the strength of the weak nuclear force relative to the electromagnetic force? Since the weak nuclear force acts at only very short distances, such as inside nuclei, where the strong and electromagnetic forces also act, it might seem surprising that we have any knowledge of it at all. We have such knowledge because the weak nuclear force is responsible for beta decay, a type of nuclear decay not explained by other forces.
A brave but inadequate rugby player is being pushed backward by an opposing player who is exerting a force of 800 N on him. The mass of the losing player plus equipment is 90.0 kg, and he is accelerating at 1.20 m/s2 backward. (a) What is the force of friction between the losing player's feet and the grass? (b) What force does the winning player exert on the ground to move forward if his mass plus equipment is 110 kg? (c) Draw a sketch of the situation showing the system of interest used to solve each part. For this situation, draw a free-body diagram and write the net force equation.
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