Conceptual Physics
What acceleration will stop the car exactly at the stop sign? vf^2 = vi^2 + 2aǻx a = (vf^2 ívi^2 )/2ǻx a = í144/72 m/s^2 a = í2. ...
Step-by-step solution In step 4, we take the square root of 106 to find the final velocity. We chose the positive square root, s ...
The acceleration of 9.80 m/s^2 occurs in a vacuum. In the Earth’s atmosphere, a feather and a small lead ball dropped from the s ...
2.19 - Interactive checkpoint: penny drop You drop a penny off Taiwan’s Taipei 101 tower, which is 509 meters tall. How long doe ...
2.21 - Summary Position is the location of an object relative to a reference point called the origin, and is specified by the us ...
Chapter 2 Problems Conceptual Problems C.1 A toddler has become lost in the forest and her father is trying to retrieve her. He ...
C.11A truck full of corn is parked at x = 0 and is pointed in the negative direction. If the driver puts it into reverse and hol ...
2.2 The school bus picks up Brian in front of his house and takes him on a straight-line 2.1 km bus ride to school in the positi ...
4.3 You are driving in one direction on a long straight road. You drive in the positive direction at 126 km/h for 30.0 minutes, ...
Section 6 - Position-time graph and velocity 6.1 A fish swims north at 0.25 m/s for 3.0 seconds, stops for 2.0 seconds, and then ...
9.5 The velocity versus time graph of an ant is shown. What is the ant's acceleration at (a) t = 1.0 s, (b) t = 3.0 s, and (c) t ...
constant acceleration and displacement are known? A. B. C. D. A B C D 15.3 The city is trying to figure out how long the traffic ...
18.4 On a planet that has no atmosphere, a rocket 14.2 m tall is resting on its launch pad. Freefall acceleration on the planet ...
3.0 - Introduction Knowing “how far” or “how fast” can often be useful, but “which way” sometimes proves even more valuable. If ...
3.2 - Vectors Vector: A quantity specified by both magnitude and direction. Vectors have both magnitude (how much) and direction ...
3.3 - Polar notation Polar notation: Defining a vector by its angle and magnitude. Polar notation is a way to specify a vector. ...
3.4 - Vector components and rectangular notation Rectangular notation: Defining a vector by its components. Often what we know, ...
3.5 - Adding and subtracting vectors graphically Vectors can be added and subtracted. In this section, we show how to do these o ...
Vector subtraction works similarly to addition when you use components. For example, (5, 3) minus (2, 1) equals 5 minus 2, and 3 ...
3.8 - Multiplying rectangular vectors by a scalar You can multiply vector quantities by scalar quantities. Let’s say an airplane ...
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