In scenario 2, the elevator is moving with upward accelerationa2 = 5.51 m/s?.FN,2%3DScenario 2In scenario 3, the cable breaks and the elevator acceleratésdownward at az = g = 9.81 m/s².FN.3 = gnment Score:0%ResourcesO HintCheck Answerstion 4 of 9A simple elevator ride can teach you quite a bit about the normal force. There are three different scenarios given detailing therider's experience in an unnamed hotel. For each scenario, calculate the normal force FN,1-3 acting on the rider if his mass ism = 78.1 kg and the acceleration due to gravity g = 9.81 m/s?In scenario 1, the elevator has constant velocity.FN.1 =NConstant velocityScenario 1In scenario 2, the elevator is moving with upward accelerationa2 = 5.51 m/s?.FN.2 =

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Description: In scenario 2, the elevator is moving with upward accelerationa2 = 5.51 m/s?.FN,2%3DScenario 2In scenario 3, the cable breaks and the elevator acceleratésdownward at az = g = 9.81 m/s².FN.3 = gnment Score:0%ResourcesO HintCheck Answerstion 4 of 9A s

In scenario 1 , since the elevator move with constant velocity , so its acceleration will be zero.…

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In scenario 2, the elevator is moving with upward acceleration a2 5.51 m/s2. %3D FN.2 N

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter5: Newton's Law Of Motion

Section: Chapter Questions

Problem 27P: Astronauts in orbit are apparently weightless. This means that a clever method of measuring the mass...

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A runner pushes against the track, as shown. (a) Provide a free-body diagram showing all the forces on the runner. (Hint: Place all forces at the center of his body, and include his weight.) (b) Give a revised diagram showing the xy -component form. (credit: modification of work by “Greenwich Photography”/Flicke)
Integrated Concepts When starting a foot race, a 70.0-kg sprinter exerts an average force of 650 N backward on the ground for 0.800 s. (a) What is his final speed? (b) How far does he travel?
At a circus, a donkey pulls on a sled carrying a small clown with a force given by . A horse pulls on the same sled, aiding the hapless donkey, with a force of The mass of the sled is 575 kg. Using and from for the answer to each problem, find (a) the net force on the sled when the two animals act together, (b) the acceleration of the sled, and (c) the velocity after 6.50 s.
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Astronauts in orbit are apparently weightless. This means that a clever method of measuring the mass of astronauts is needed to monitor their mass gains or losses, and adjust their diet. One way to do this is to exert a known force on an astronaut and measure the acceleration produced. Suppose a net external force of 50.0 N is exerted, and an astronaut’s acceleration is measured to be 0.893m/s2 . (a) Calculate her mass. (b) By exerting a force on the astronaut, the vehicle in which she orbits experiences an equal and opposite force. Use this knowledge to find an equation for the acceleration of the system (astronaut and spaceship) that would be measured by a nearby observer. (c) Discuss how this would affect the measurement of the astronaut’s acceleration. Propose a method by which recoil of the vehicle is avoided.
On the surface of Mars, the acceleration due to gravity is 0.39 times that on the earth. What would a kilogram weigh in newtons on Mars? The answers to Confidence Exercises may be found at the back of the book.
When a 1.50-kg dress hangs midway from a taut clothesline stretched between two poles planted 7.50 m apart, the clothesline is seen to sag 0.0500 m. a. Draw a free-body diagram of the dress. b. What is the tension produced on the clothesline by the dress? Assume the clothesline is massless.
suppose twoo children push horizontally but in exactly opposite directions on a third child on a sled. The first child exters a force of 75N, the second a force of 98N, kinetic friction is 5.5N and the mass of the third child pus the sled is 21kg.Using a coordinate system where the second child is pushing in the postive direction, calculate the accelteration in m/s2.
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Jonny pulled a 25.0 N crate up a 3.0 m inclined plane at constant velocity. If the plane is inclined at an angle of 35° to the horizontal and there exists a constant frictional force of 30.0 N between the crate and the surface, calculate the force applied by Jonny?
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A 15-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 678 N at an angle of 39.5° above the horizontal to accelerate a 125-kg crate of books. The coefficient of friction between the crates and the vinyl floor is 0.578. Determine the acceleration experienced by the crate in m/s2. Use the approximation g ≈ 10 m/s2.