Answer:
the angular speed in rad/s is 1.3
Explanation:
given information:
rope's length, r = 5.5 m
tangential speed, v = 7.15 m/s
to find the angular speed (ω) of the kids on the swing, we use the formula below
ω = [tex]\frac{v}{r}[/tex]
where
ω = angluar speed (rad/s)
v - tangential speed (m/s)
r = radius (m)
thus,
ω = [tex]\frac{7.15}{5.5}[/tex]
= 1.3 rad/s