Figure ax (m/s²) 30 Particle C ☑ 20- 10 0 t(s) 2 4 6 8 -10- -20 -30- 3 of 3 Find the velocity of the particle C at t = 4.5 s. Particle starts with vor = 10 m/s at to =0s. (Figure 3) Express your answer with the appropriate units. ▸ View Available Hint(s) m VC = Value S Submit Previous Answers ? × Incorrect; Try Again; 9 attempts remaining The answer you have entered would be correct if the initial velocity were equal to zero. Account for the initial velocity. You may want to review Hint 1. Determining the velocity from the acceleration-versus-time graph. Provide Feedback

An experimentalist in a laboratory finds that a particle has a helical path. The position of this particle in the laboratory frme is given by r(t)= R cos(wt)i + R sin(wt)j + vztk R,vz, and w are constants. A moving frame has velocity (Vm)L= vzk relative to the laboratory frame. In vector form: A)What is the path of the partical in the moving frame? B)what is the velocity of the particle as a function of time relative to the moving frame? C)What is the acceleration of the particle in each frame? D)How should the accelerartion in each frame be realted?Does your answer to part c make sense?

Let E = 21 +3j and F = 11 - 3j. ▼ Part A Find the magnitude of E. ► View Available Hint(s) E = Submit Part B 17| ΑΣΦ Find the magnitude of F. ► View Available Hint(s) F = IVE ΑΣΦ Submit ? ?

Mr. M is walking to Mr. T’s house. He take the shortcut across an open field. His first displacement is 140 m[E35N]. He then walks 200.0m[E]. What is Mr. M’s total displacement?