O Part 2 - Determine the theoretical acceleration - Data and Calculations Write an expression for the acceleration of an object sliding down a frictionless ramp. (Use the following as necessary: m, g, and 0 g sin (0) a = Using the protractor markings at the right end of the ramp, determine the ramp angle. Since it is difficult to see the protractor clearl the angle as a range within which you are certain the true value lies. (Do not enter units for this answer.) Note: The protractor is aligned to measure angles from the table surface. This means that you should use the underside of the ramp surface to measure the ramp angle. Omin = 7 Omax = 7.5 Use the equation to find the accelerations for these angles. amin = amax =

You drive 109 km/h east for 31 min, then 82 km/h north for 42 min Let the +x-axis point east and the +y-axis north. A) Find your average velocity for the entire trip. B) Find your average speed for the entire trip.

A student fires a cannonball vertically upwards with a speed of 39.0m/s. Determine all unknowns and answer the following questions. Neglect drag and the initial height and horizontal motion of the cannonball. What was the cannonball's maximum height? unit How long did the cannonball rise? unit What was the cannonball's total flight time? unit check answers cannot be de Unit 12: forces and motion review, one-dimensional motion problems Desmos Scientific Online Calculator

Learning Goal: Suppose an object has an initial velocity v₁ at time t; and later, at time tf, has velocity Vf. The fact that the velocity changes tells us the object undergoes an acceleration during the time interval At = tf — t₁. From the definition of average acceleration, Figure a = 15 Vf - Vi tf-ti = Δύ At we see that the acceleration vector points in the same direction as the vector Av. This vector is the change in the velocity Av = f - Vi, so to know which way the acceleration vector points, we have to perform the vector subtraction of — V₁. This Tactics Box shows how to use vector subtraction to find the acceleration vector. - 9 1 of 1 Part B Below is another motion diagram for an object that moves along a linear path. The dots are separated by equal intervals and represent the position of the object at five subsequent instants. The vectors V21, 32, 43, and 54 represent the average velocity of the object during the four corresponding time intervals. Draw the velocity vectors…