ETA-1 Begin Date:1/17/2018 12:01:00 AM-Due Date: 1/24/2018 11:5900 PM End Date:

Question

ETA-1 Begin Date:1/17/2018 12:01:00 AM-Due Date: 1/24/2018 11:5900 PM End Date: 1/24/2018 11:5900 PM (13% ) Problem 8: A ball is thrown from a rooftop with an initial downward velocity of magnitude vo-63 m/s. The rooftop is a distance above the ground, h . 14 m. In this problem use a cooedinate system in which upwards is positive. Ctheespertta.com > 33% Part (a) Find the vertical component of velocity, why, in meters per second, with which the ball hits the ground. cotan asin acos atan) acotansith coshO tan cotanh0 e DegreesRadians trmpts remaining (0% per detailed view Feedback:-deduction per feett 33% Part (b) If we wanted the ball's final speed to be exactly 273 ms, fom what height.. (innten), would-nedtotrw twith the same initial velocity? 33% Part (e) Ifthe height is fixed it 14 m.but we wanted the bars final speed to be 327 m s, what would the vetical component of initial velocity viy nood to be, in meters per second? 5 7 8 9 0

Explanation / Answer

A) vfy = -(6.9^2+19.6*14)^0.5

vfy = -17.94 m/s

B) hnew = (745.3- 6.9^2)/19.6

hnew = 35.60 m

C) viy = -(1069.3-19.6*14)^0.5

viy = -28.19 m/s

Please rate my answer, good luck...

Related Questions

Navigate

• Browse (All)
• Browse E
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.