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2. A rock is thrown straight upwards (air resistance is negligible). At its highest point, what can you say about the acceleration? A) The acceleration is upwards. B) The acceleration is downwards. C) The acceleration is zero. D) The acceleration reverses from upward to downward. E) The acceleration reverses from downward to upward.

2. A rock is thrown straight upwards (air resistance is negligible). At its highest point, what can you say about the acceleration? A) The acceleration is upwards. B) The acceleration is downwards. C) The acceleration is zero. D) The acceleration reverses from upward to downward. E) The acceleration reverses from downward to upward.

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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**Physics Practice Questions** 1. **Kinematics** A car is traveling in a straight line. Which of the following statements is true? A) The car moved 1.5 meters in the first second it travelled. B) The car is speeding up by 1.5 m/s every second. C) The car is speeding up by 1.5 m/s² every second. D) The car is slowing down by 1.5 m/s every second. --- 2. **Projectile Motion** A rock is thrown straight upwards (air resistance is negligible). At its highest point, what can you say about the acceleration? A) The acceleration is upwards. B) The acceleration is downwards. C) The acceleration is zero. D) The acceleration reverses from upward to downward. E) The acceleration reverses from downward to upward. --- 3. **Vector Analysis** Vector **A** has magnitude 13, and is at an angle of 112.6° from the +x axis. What is the x component of **A**? A) -5 B) -12 C) +13 D) +5 E) +12
Transcribed Image Text:**Physics Practice Questions** 1. **Kinematics** A car is traveling in a straight line. Which of the following statements is true? A) The car moved 1.5 meters in the first second it travelled. B) The car is speeding up by 1.5 m/s every second. C) The car is speeding up by 1.5 m/s² every second. D) The car is slowing down by 1.5 m/s every second. --- 2. **Projectile Motion** A rock is thrown straight upwards (air resistance is negligible). At its highest point, what can you say about the acceleration? A) The acceleration is upwards. B) The acceleration is downwards. C) The acceleration is zero. D) The acceleration reverses from upward to downward. E) The acceleration reverses from downward to upward. --- 3. **Vector Analysis** Vector **A** has magnitude 13, and is at an angle of 112.6° from the +x axis. What is the x component of **A**? A) -5 B) -12 C) +13 D) +5 E) +12
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