Note: Use principles of physics to solve the problem and then verify your answer

Question

Note: Use principles of physics to solve the problem and then verify your answer using the simulation.
Turn air resistance off so the acceleration is a = -9.80 m/s2 (the - sign indicates that the acceleration is down). Set the initial position to y0 = +0.500 m and the initial velocity to v0y = +5.50 m/s. You should use principles of physics to answer the following questions, and then verify your answers with the simulation.


(a) What is the maximum y-position reached by the ball?


2.04m (i got this answer correct)

(b) At what time does the ball reach its maximum y-position?


0.561s (i got this answer correct)

(c) At what time does the ball pass y = 0?


_________s

(d) What is the y-velocity when the ball passes y = 0?


_________m/s

Explanation / Answer

a) s= v2/2g= 1.543 m
total y= 1.543+.5=2.043 m
c) s=-.5
so, -.5= 5.5t +1/2 * (-9.8) *t2
t= 5.5/4.9=1.206 sec.
d) v= 5.5 - 9.8*1.206= -6.318 m/sec

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

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