Afather fashions a swing for his kids out of a long rope that he fastens to the limb of a tall tree. as one of the kids swings from this rope that is 5.50 m long his tangential speed at the bottom of the swing is 7.15 m/s. what is his angular speed in rad/s?

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 =

where

ω = angluar speed (rad/s)

v - tangential speed (m/s)

r = radius (m)

thus,

ω =

   = 1.3 rad/s

r = ρ x length / area  

ρ = r x area / length  

ρ is in ohm-meters  

in basic units, it is m³kg/s³a²  

i think this is it.