1/31/2024 0 Comments Physics 101 quizlet![]() Suppose you are riding in a car heading to the right. What is the difference between speed and velocity? Speed is the magnitude of velocity. What is acceleration? The rate of change of velocity over time. Why is equilibrium important? All of the above. In physics, what is torque? A rotational or twisting effect of a force causes on an object. What is center of gravity? The point in a system where the mass of the entire system is considered to be concentrated. What would the angle of the vector be if it is in the N of E direction? 30 Suppose you had the following: Vector 1 = magnitude of 45 and degree of 26 in the N of E direction Vector 2 = magnitude of 75 and degree of 40 in the S of W direction What would the total magnitude and direction be if you add Vector 1 and 2 together? 33.2 in the S of W direction Suppose you had the following: Vector 1 = magnitude of 30 and degree of 17 in the N of W direction Vector 2 = magnitude of 15 and degree of 45 in the S of E direction What would the total magnitude and direction be if you add Vector 1 and 2 together? 18.2 in the S of W direction In physics, what is equilibrium? The state of a body at rest or in uniform motion in which the resultant of all forces on it is zero. What would the magnitude of the vector be? 5 Suppose a vector had an x- component of 1.73 and a y-component of 1. If sin(θ) = opposite/hypotenuse and cos(θ) = adjacent/hypotenuse, what is tan(θ)? opposite/adjacent What theorem is used to find hypotenuse of a triangle when given the other two sides? Pythagorean What is the x - component of a vector (roughly) that has a magnitude of 1.414 and a degree of 45 in the N of E direction? 1 What would the total magnitude be (roughly) if Vector 1 had a magnitude of 20 and a degree of 45 in the N of E direction and Vector 2 had a magnitude of 25 and a degree of 30 in the N of E direction? 45 Suppose a vector has an x-component of 3 and a y-component of 4. Then add the y- component of Vector 1 to the y-component of Vector 2. When you add Vector 1 and Vector 2, how do you do it? You add the x-component of Vector 1 to the x-component of Vector 2. In physics, what is a vector? A quantity that has a magnitude and a direction.
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