Question-uhat does this parabolic velocity vs. time graph tell you about the acceleration of the okiect} Time Options A. Thele is not enough info to determine B. The acceleation is constant C the aleeleration is increasing D The acceleration is decreasing Vebcitx

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Sketch the velocity-time graph corresponding to each of the following descrip- tions of the motioi of an object. 7. The object is moving away from the origin at a steady (constant) veloc- ity. Time 8. The object is standing still. Time 9. The object moves toward the origin at a steady (constant) velocity for 10 s, and then stands still for 10 s. 10-- 20 Time (s) Velocity Velocity Velocity

The house, school, and diner are on the same street. The house is 820 ft from the school and 0.6 miles from the diner. Assume the positive direction is to the LEFT ←. If you start from the diner, head to the house, and then go back to the diner in 2 hr., what is your average velocity in cm/s to two significant figures? HH 188 A. 0.6 cm/s B. 26.8 cm/s C.-27 cm/s D. 0.0 cm/s E. none of the above SCHOOL DINER

Context The position of a peculiar fish as a function of time is given by the following equation. Time is in seconds, position is in meters, and the positive direction is to the right. x(t) = 2t3 + 12t2  - 72t The fish's position, velocity, and acceleration functions are x = 2t3 + 12t2 - 72t, v = 6t2 + 24t - 72, and a = 12t + 24.  Question: When, if ever, is the fish at rest? Drag the appropriate label(s) to the correct location(s) on the number line. Remember that it is the circle in the upper left corner of the label that must be in the correct place. Drag the period (.) to denote a single time; for example, t=0. Drag the left bracket ([) to denote the lower end of a range; for example, t>0. Drag the right bracket (]) to denote the upper end of a range; for example, t<0. Drag "none" anywhere near the line if the fish is never at rest. You may place as many of each symbol on the line as needed. See image attached:

QUESTION 15 If the velocity of an object is zero at some point, then its acceleration must also be zero at that point. O True O False QUESTION 16 Suppose that an object travels from one point in space to another. Make a comparison between the magnitude of the displacement and the distance traveled by this object O A. The magnitude of the displacement can be either greater than, smaller than, or equal to the distance traveled. O B. The magnitude of the displacement is either less than or equal to the distance traveled OC The magnitude of the displacement is always equal to the distance traveled. O D. The magnitude of the displacement is either greater than or equal to the distance traveled. QUESTION 17 Shown below are the velocity and acceleration vectors for an object in several different types of motion. In which case is the object slowing down and turning to its ri OA. ick Save and Submit to save and submit. Click Save All Answers to save all answers. Type here to search

A man riding a hot air balloon drops a ball when he was 75m from the ground. If the hot air balloon is still ascending at a constant rate of 5m/s during this time, determine the ff a Velocity of the ball after 2.5s b. Time at which the ball is falling at 17m/s cHeight of ball from the ground 3.5s after being dropped d. Total time it took for the ball to hit the ground Velocity Time @17m/s Height Total Time (ground)

The velocity after 2 second would be:? 8) The equabion of motion of a parbicle is s-2t-36-36t, where s is in meters and & is in seconds, ) the accelera tion aftes 1 sec is ? mps Conetersper secono B 2) The ecceleration when the ve locity is o is ?