A diver makes 0.50 revolutions on the way from a 9.4-m-high platform to the water. Assuming zero initial vertical velocity, find the diver's average angular velocity during a dive.

Question

Physics

Alfred Sawyer

23 October, 23:41

A diver makes 0.50 revolutions on the way from a 9.4-m-high platform to the water. Assuming zero initial vertical velocity, find the diver's average angular velocity during a dive.

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Brandon Santana · Answer 1

wi = 0 rad/s

Theta = 0.5 rev

r = 9.4 m

S = 2 * pi * theta * r

= 2pi * 0.5 * 9.4

= 29.53 m

at * r = g

= 1.043 rad/s^2

Using angular equation of motion,

wf^2 = wi^2 + 2 * at * S

wf^2 = 2 * 1.043 * 29.53

= 7.85 rad/s