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At t = 9, is the particle speeding up or slowing down? Give a reason for your answer.
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- In part (a) of the solution you have: 22 = (.5)V (8 + 2) I understand that 22 is total displacement, and 8 is the total seconds but where did you get the 2 from in (8 + 2)?GgA particle starts from zo = 22 m at to=0 and moves with the velocity graph shown in (Eigure 1). You may want to review (Pages 41-43). Figure v, (m/s) 12 Z 1 2 3 8 4 0 1 of 1 r(s) Submit Value Part C Units Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining Value What is the object's position at t=48? Express your answer to two significant figures and include the appropriate units. ? Units Submit Previous Answers Request Answer ? X Incorrect; Try Again; 3 attempts remaining
- Can you please help me with number 3? Using the equations given. Thank you!The y-coordinate of a particle varies at a constant speed of 4.2 m/s. At t=0, the y-coordinate was found to be 2.7 m. Find an analytic expression for the function y(t).Page The heights of a rock after t seconds, when propelled straight up with an initial speed of 80 feet per second from an initial height of 20 feet, can be modeled by the function s(t) = -16t² + 80t +20. When will the height of the rock be 50 feet? Round your answer to the nearest tenth of a second. C