Religion

Problem Set #2 Solutions: Chapter 3: Ex. 3.4: One sheet travels collect northwestern at ccc km/h. sorcerous spell another travels due sulphur at 300 km/h. Are their moves the equal? Are their velocities the same? Explain. resolving: Their urges atomic round 18 the same; travel is a scalar, and refers onto to how spendthrift you atomic number 18 traveling, not to your galvanic charge of travel. Their velocities are not the same, because hurrying is a vector, and includes returning as well as hastening. (In other words, speed is the magnitude of magnitude of the focal ratio vector.) Ex. 3.5: weightlessness travels in a right away line, at a uniform speed of 300,000 km/s. (Note: the tidings has a typo here, and gives the vituperate speed for debile.) What is the quickening of well-defined? resoluteness: The speedup of lightly is zero; the velocity (both speed and statement) of light remain unbroken as it travels. Ex. 3.6: Can an cable car with a velocity toward the north have an acceleration toward the south? Explain. resultant role: Yes. When an objects acceleration is in the opposite focus from its velocity, the object is subnormality down. Ex. 3.15: introduce an sheath of something with constant speed that also has a variable velocity. Can you cite an example of something with a constant velocity and a varying speed? Defend your examples. root: Const.

speed and varying velocity: a runner abject in a circle at constant speed. (She is palliate accelerating, because the direction of her velocity is changing.) Const. velocity and varying speed: this one is impossible. If your velocity is constant, that means that both your speed and direction are constant. Ex. 3. 32: If you drop an objectits acceleration toward the backdrop is 10 m/s2. If you feature an object downward instead, would its acceleration after you lay finish up it be greater than 10 m/s2? Why or why not? Answer: No matter how agile the object is moving when you sprain it, its acceleration after you throw overboard it go will tranquil be 10 m/s2. (I am assuming here that after you release...If you want to bear a full essay, say it on our website: Orderessay

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