1. Which of the following are possible non-SI units to describe the rate of acceleration? (Choose all that apply) D kilometers per hour squared U meters per second per minute D miles per kilometer per second D meters per hour per kilometer D miles per hour per second D kilometers per minute statements is accurate? 0 Her velocity is negative. and her acceleration is negative. 0 Her velocity is negative. and her acceleration is positive. 0 Her velocity is positive, and her acceleration is negative. 0 Her velocity is positive, and her acceleration is posltive. 3. Brad is riding his bicycle on a straight stretch of road. When he passes a trafc light, he begins timing himself. in 29.9 seconds, he cycles 220 meters. His rate of acceleration during this stretch was 0.14 m/s2. Given this information, what was Brad's initial velocity when he started timing himself? Assume all motion is in the positive direction. 4. Paul is a physicist, observing the movement of a charged particle. The particle is moving in a straight line along the yaxis of an x-g plane. lts initial velocity was 3 m/s, and its nal velocity was 6 m/s. At the end of Paul's observation, the particle's displacement was 3. 75 meters in the positive direction. How long was Paul observing the particle's motion? 0 1.2 seconds 0 5.6 seconds 0 2.5 seconds 0 4.2 seconds 5. Which of the following equations accurately defines acceleration? O = At O a = O d = Ad At O =6. Colette launches an air rocket in the upward, positive direction. It launches with an initial velocity of 25.5 m/s. it accelerates in the downward, negative direction at a rate of 9.81 m/s2. After 3.5 seconds, what is the magnitude of the rocket's displacement? O 31 meters 0 29 meters 0 150 meters 0 150 meters changes saved 7. Claudia is accelerating to get on the interstate. At the beginning of the south-facing on-ramp, she is traveling at 11 m/s. When she reaches the end of the on-ramp 9.0 seconds later, she is traveling at 29 m/s. Assuming south to be the negative direction, what is Claudia's average rate of acceleration during this period? O -1.9m/s2 O -3.1m/$2 O 3.1m/s? O 1.9m/$28. Kayla is measuring how long it takes a ball to roll down a hill. The ball has a starting velocity of 2.6 m/s. The ball rolls down the hill for 5.5 seconds, and when it reaches the bottom, it has a velocity of 8.0 m/s. How far did the ball roll during this time frame? 14 meters 44 meters O 29 meters O 58 meters9. Quincy is monitoring the movement of a particle along the w-axis of an z-y plane. The velocity is negative, and the acceleration is positive. Which of the following describes what Quincy observes? O The particle is moving in the positive direction, and its speed is decreasing. O The particle is moving in the positive direction, and its speed is increasing. 0 The particle is moving in the negative direction, and its speed is decreasing. O The particle is moving in the negative direction, and its speed is increasing. 10. When velocity is graphed with respect to time, what does the area under the line represent? 0 velocity 0 displacement O acceleration 0 distance