Part A IP A particle passes through the origin with a velocity of (6.4m/s)9. If the particle's acceleration is (-4.2m/s')&, what are its a and y positions after 6.0 s ? Express your answers using two significant figures separated by a comma. 40B? C, y= Submit Request Answer Part B If the particle's acceleration is (-4.2m/s')x. what are v, and u, after 6.0 s ? Express your answers using two significant figures separated by a comma. m / s Submit Request Answer Part C Does the speed of this particle increase with time, decrease with time, or increase and then decrease? increase O decrease O increase and then decrease Previous Answers Correct Part D Explain. Essay answers are limited to about 500 words (3800 characters maximum, including spaces). 3800 Character(s) remaining Submit Request Answer Provide Feedback