Question

Determine how long it will take an object to rotate through 10.0 revolutions at an angular velocity of 4.8 radians per second. use . round the answer to the nearest tenth.

Answer 1

Given:
Ф = 10 revolutions
ω = 4.8 rad/s, angular velocity

The time taken to complete 10 revolutions is
t = Ф/ω
= [(10 rev)*)2π rad/rev)]/(4.8 rad/s)
= (20π)/4.8 s
= 13.09 s

Answer: 13.1 s (nearest tenth)