Starting from rest, a thrower accelerates a discus to a final angular speed of +

Question

Starting from rest, a thrower accelerates a discus to a final angular speed of +15.0 rad/s in a time of 0.270 s before releasing it. During the acceleration, the discus moves in a circular arc of radius 0.810 m. Find the centripetal acceleration and the angular acceleration. Starting from rest, a thrower accelerates a discus to a final angular speed of +15.0 rad/s in a time of 0.270 s before releasing it. During the acceleration, the discus moves in a circular arc of radius 0.810 m. Find the centripetal acceleration and the angular acceleration.

Explanation / Answer

centripetal acceleration ac =v2/r

= (r)2/r = 2r = (15rad/s)2 * 0.810 = 182.25 m/s2

angular acceleration = /t = 15/0.270 = 55.55 rad/s2

Related Questions

Navigate

• Browse (All)
• Browse S
• Subjects

---

---

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