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MiraCosta College *
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Course
270
Subject
Mathematics
Date
Feb 20, 2024
Type
Pages
4
Uploaded by ChancellorComputerFrog24
2/2/24, 7:56 PM Quiz: Week 2 Post-Test Week 2 Post-Test Started: Feb 2 at 7:52pm Quiz Instructions This Post-Test is designed to test your knowledge on the basic concepts we learned this week. The Post-Tests are graded for accuracy and whether you get a question right or not will determine your score. The questions in the Post-Tests are much easier than the questions will be on the quizzes. Answers will be available on Friday at 10:01pm. Question 1 1 pts When an object turns around, what must be true? O its position is zero @ its velocity is zero O its acceleration is zero (O its velocity and acceleration are zero Question 2 1 pts The graph shows the velocity of a particle as a function of time. What is the particle’s acceleration from t =2 sto t =6 s? https://miracosta.instructure.com/courses/38753/quizzes/341095/take 1/4
2/2/24, 7:56 PM Quiz: Week 2 Post-Test v (m/s) 15 10 V NEEEEESAE -10 -15 \\\L- O 15 m/s? t(s) O 10 m/s? O -5m/s? O -10 m/s? Question 3 1 pts The graph shows the velocity of a particle as a function of time. At z= 2 s, the particle is located at the position x = 100 m. Where is the particle located at ¢ = 5 s? https://miracosta.instructure.com/courses/38753/quizzes/341095/take 2/4
2/2/24, 7:56 PM Quiz: Week 2 Post-Test v (m/s) 15 10 t(s) = & N /| O 225m O 45m O 115m O 1225m Question 4 1 pts An object accelerates from a speed of 2.0 m/s to a speed of 5.0 m/s (both in the +x direction) over a distance of 11 m. What is the object’s acceleration? O 0.30 m/s? O 0.60 m/s?2 @ 0.95 m/s? O 1.15 m/s? Question 5 1 pts https://miracosta.instructure.com/courses/38753/quizzes/341095/take 3/4
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2/2/24, 7:56 PM Quiz: Week 2 Post-Test A ball is thrown straight upward from the ground with a velocity of 39 m/s. How much time passes before the ball strikes the ground? O 12s O 24s (O 4.0s (O 8.0s Saving... Submit Quiz https://miracosta.instructure.com/courses/38753/quizzes/341095/take 4/4