Question

A discus thrower accelerates a discus from rest to a speed of 25.3 m/s by whirling it through 1.29 rev. Assume the discus moves on the arc of a circle 0.96 m in radius. A discus thrower moving in a circle as he prepares to throw the discus. (a) Calculate the final angular speed of the discus. rad/s

Answer 1

ω = 26.35 rad/s

Step-by-step explanation:

given,

speed of discus thrower = 25.3 m/s

whirling through = 1.29 rev

radius of circular arc = 0.96 m

final angular speed of the discus = ?

using formula

v = ω r

v is the velocity of disk

ω is the angular speed of the discus

r is the radius of arc

`\omega = (v)/(r)`

`\omega = (25.3)/(0.96)`

ω = 26.35 rad/s

Final angular speed of the discus is equal to ω = 26.35 rad/s