Question

Problem 1.43 (Multistep) The figure below shows the trafectory of a ball traveling through the air, affected by both gravity and air resistance, Here are the positlons of the ball at veral successlve times. Location t(s) 0.0 1.0 22.4, 29.9, 0 30.7. 30.7.0 Part (a) What is the avarage velocity of the ball as it travals between location A and location B? (Exprass your anser in vector form) m/s by accessing this questlon ssistance, you wt1 learn while you earn ports based on the Paint Potential polcy set by your Instructor Attempts: 0 of 9 used SNVL FOK LAILK Part2 (b) If the ball continued to travel at the same average velocity during the next second, where would be at the end of that second? That ls, where would it be at time = 2 s ? {Express your answer i, vector form.) By accessing this Question Assistance, you wil leam while you earn points based on tha Poin: Potantial Polcy set by your inatructor. Attempts: 0 of 9 used SAVF FOR LATER Part3 (c) How does your prediction from part (b) compare to the actual position of the ball at-2s (lacation C)? If the predicted and observed locations of the ball are dfferent, explain why O 급, s at the same point as what we predeted we assumed constant velocity when mak ng our prediction and an appreometion o, constant velocity is valid for any time interval, O s not at the same peint as what we predicted. We ssumed constant velocity whan making our predictien: hewever, in reaity the velcity was net conatant, but was decreasing in bath the r and y drectians. An approximatian of constant velocdity is only valid for small time intervals. For this projectie, Δ:: 1.0 s was not a small enough time interval to reasonably essume constant velocity.

Answer 1