Class Management Help January 31 Begin Date: 1/29/2018 11:00:00 AM -- Due Date:
ID: 3307856 • Letter: C
Question
Class Management Help January 31 Begin Date: 1/29/2018 11:00:00 AM -- Due Date: 1/31/2018 11:00:00 AM End Date: 1/31/2018 11:00:00 AM (22%) Problem 4: The cork from a champagne bottle slips through the hands of a waiter opening it, moving with an initial velocity 13.2 m/s at an angle = 79.9 above horizontal. A diner is sitting a horizontal distance d away when this happens Assume the cork leaves the waiter's hands at the same vertical level as the diner and that the cork falls back to this vertical level when it rcaches the diner. Usc a Cartesian coordinate system with the origin at the cork's initial position 50% Part (a) Calculate the time, td in seconds, for the cork to reach the diner 50% Part (b) Reacting quickly to avoid being struck, the diner moves 2.00 m horizontally directly toward the water opening the champagne bottle. Dctermine the horizontal distance, d in meters, betwcen the person and the diner at the time the cork reaches where the diner had previously been sitting Grade Summary Deductions Potential d 6.141 12% 88% cos) asin) Submissions Attempts remaining: 3 (5% per attempt) detailed view 7 8 9 HoME tan() acos) sinhO cotan atan)acotan() cosh)tanhO cotanhO 5% END | 5% Degrees Radians O BACKSPACE DEL CLEAR Submit Hint Feedback give up!Explanation / Answer
Range of a projectile is given by
R= Sin(2x)vv2/g
R=Sin(159.8)*13.2*13.2/9.8 = 6.139metres.
This range is the distance of diner from waiter.