Just CHOOSE ONE OPTION, no need to explain thank you! 1. A 60.0 kg person is standing on a stool screwing a lightbulb into a socket. They apply a force of 50 N [upwards] on the bulb while screwing it into the socket. What is the normal force between the bulb and the person? a) 50 N b) 60 N c) 10 N d) 490 N e) 550 N 2. A person is standing on a bathroom scale in an elevator. As the elevator is accelerating downwards (at a rate that is less than g), the person looks down at the scale and notices that it reads: a) Zero. b) Less than their actual weight. c) greater than their actual weight. d) the same as their actual weight. e) it is not possible to tell. 3. A skydiver steps out of a plane and falls straight down towards the Earth. At some point, the force of air resistance is smaller in magnitude compared to the force of gravity acting on the skydiver. What will happen to the skydiver at this point? a) The skydiver will slow down as they move in the downward direction. b) The skydiver will speed up as they move in the upwards direction. c) The skydiver will maintain their current speed as they move in the downward direction. d) The skydiver will accelerate at exactly 9.80 m/s2 [down]. e) The skydiver will accelerate downwards at a rate that is less than 9.80 m/s2. 4. Two crates (m1 and m2), connected by a rope, are positioned on a flat horizontal frictionless surface as shown in the diagram ATTACHED. The mass of m2 is twice the mass of m1. A rightward force (F) is applied to crate m1 as shown, and the system accelerates in the rightward direction (scenario 1). The positions of the crates are reversed as shown in the right diagram. The same force (F) is now applied to mass m2 (scenario 2). In which scenario is the force of tension in the rope between mass 1 and mass 2 smaller? a) Scenario 1 b) Scenario 2. c) The forces are the same. d) Tension is non-existent in this scenario. e) This question cannot be answered using the information provided.

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

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Just CHOOSE ONE OPTION, no need to explain thank you! 1. A 60.0 kg person is standing on a stool screwing a lightbulb into a socket. They apply a force of 50 N [upwards] on the bulb while screwing it into the socket. What is the normal force between the bulb and the person? a) 50 N b) 60 N c) 10 N d) 490 N e) 550 N 2. A person is standing on a bathroom scale in an elevator. As the elevator is accelerating downwards (at a rate that is less than g), the person looks down at the scale and notices that it reads: a) Zero. b) Less than their actual weight. c) greater than their actual weight. d) the same as their actual weight. e) it is not possible to tell. 3. A skydiver steps out of a plane and falls straight down towards the Earth. At some point, the force of air resistance is smaller in magnitude compared to the force of gravity acting on the skydiver. What will happen to the skydiver at this point? a) The skydiver will slow down as they move in the downward direction. b) The skydiver will speed up as they move in the upwards direction. c) The skydiver will maintain their current speed as they move in the downward direction. d) The skydiver will accelerate at exactly 9.80 m/s2 [down]. e) The skydiver will accelerate downwards at a rate that is less than 9.80 m/s2. 4. Two crates (m1 and m2), connected by a rope, are positioned on a flat horizontal frictionless surface as shown in the diagram ATTACHED. The mass of m2 is twice the mass of m1. A rightward force (F) is applied to crate m1 as shown, and the system accelerates in the rightward direction (scenario 1). The positions of the crates are reversed as shown in the right diagram. The same force (F) is now applied to mass m2 (scenario 2). In which scenario is the force of tension in the rope between mass 1 and mass 2 smaller? a) Scenario 1 b) Scenario 2. c) The forces are the same. d) Tension is non-existent in this scenario. e) This question cannot be answered using the information provided.

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