Chapter_2_Study_Guide.pdf - -Chapter 2 Kinematics Study...

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-Chapter 2: Kinematics Study Guide- Kinematics is the branch of mechanics that deals with the motion of objects (without worrying about force or mass). This chapter introduces our list of equations that we will use to describe the relationship between displacement, velocity, and acceleration all the way through Chapter 7. **The equation for velocity in this chapter, V = Δ x / Δt, assumes no acceleration and therefore cannot be used when an object is accelerating! 1. Mr. Murphy built a rocket ship out of spare parts he found in the Physics lab. It is capable of accelerating at 273.8 m/s 2 but only carries enough fuel to accelerate for 42.0 seconds. (a) What is his final velocity? (b) How far does the ship travel in that time? (Ans: 11.5E4 m/s; 2.41E5 m) 2. A cart with an initial velocity of 5.0 m/s experiences a constant acceleration of 2.0 m/s 2 . What is the magnitude of the cart’s displacement during the first 6.0 s of its motion (in m/s 2 )?
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