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1. Circle each of the following statements that are true. Think carefully and be sure that you could justify your answer if you were asked to do so. a) An object can move even when no force acts on it. b) If an object isn't moving, no external forces act on it. c) If several forces act on an object, the object must accelerate. d) If a single force acts on an object, the object must accelerate. e) If an object accelerates, at least one force must be acting on it. f) If the net force acting on an object is downward, the object must be moving downward. g) If the net force acting on an object is downward, the object must be accelerating downward.

1. Circle each of the following statements that are true. Think carefully and be sure that you could justify your answer if you were asked to do so. a) An object can move even when no force acts on it. b) If an object isn't moving, no external forces act on it. c) If several forces act on an object, the object must accelerate. d) If a single force acts on an object, the object must accelerate. e) If an object accelerates, at least one force must be acting on it. f) If the net force acting on an object is downward, the object must be moving downward. g) If the net force acting on an object is downward, the object must be accelerating downward.

College Physics
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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Can someone help me with these questions please they are all the same question
1. Circle each of the following statements that are true. Think carefully and be sure that you could justify your answer if you were asked to do so. a) An object can move even when no force acts on it. b) If an object isn't moving, no external forces act on it. c) If several forces act on an object, the object must accelerate. d) If a single force acts on an object, the object must accelerate. e) If an object accelerates, at least one force must be acting on it. f) If the net force acting on an object is downward, the object must be moving downward. g) If the net force acting on an object is downward, the object must be accelerating downward. 2. a) A spider of mass 0.15 kg hangs motionless from a thread. What is the tension in this thread? b) If the spider now accelerates downward at a rate of 2.1 m/s² to catch a fly, what is the new tension in the thread?
Transcribed Image Text:1. Circle each of the following statements that are true. Think carefully and be sure that you could justify your answer if you were asked to do so. a) An object can move even when no force acts on it. b) If an object isn't moving, no external forces act on it. c) If several forces act on an object, the object must accelerate. d) If a single force acts on an object, the object must accelerate. e) If an object accelerates, at least one force must be acting on it. f) If the net force acting on an object is downward, the object must be moving downward. g) If the net force acting on an object is downward, the object must be accelerating downward. 2. a) A spider of mass 0.15 kg hangs motionless from a thread. What is the tension in this thread? b) If the spider now accelerates downward at a rate of 2.1 m/s² to catch a fly, what is the new tension in the thread?
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