Physics for Scientists and Engineers 9th Edition Serway Solutions Manual

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2 Motion in One Dimension CHAPTER OUTLINE

2.1

Position, Velocity, and Speed

2.2

Instantaneous Velocity and Speed

2.3

Analysis Model: Particle Under Constant Velocity

2.4

Acceleration

2.5

Motion Diagrams

2.6

Analysis Model: Particle Under Constant Acceleration Acceleration

2.7

Freely Falling Objects

2.8

Kinematic Equations Derived from Calculus

* An asterisk indicates a question or problem new to this t his edition. ANSWERS TO OBJECTIVE QUESTIONS

OQ2.1

Count spaces (intervals), (intervals), not dots. Count 5, not 6. The first drop falls at time zero and the last drop at 5 × 5 s = 25 s. The average speed is 600 m/25 s = 24 m/s, answer (b).

OQ2.2

The initial velocity of the car is v0 = 0 and the velocity at time t is v. The constant acceleration acceleration is therefore given by a=

Δv Δt

=

v − v0 v − 0 v = = t−0 t t

and the average velocity of the car is