Question

A rotating merry-go-round makes one complete revolution in 4.8 s . Assume the wheel is moving with a constant angular velocity.

What is the linear speed of a child seated 1.3 m from the center?

What is her acceleration (give components)? Enter the radial and tangential components of the acceleration using two significant figures separated by a comma.

Answer 1

w = angular speed = ! I rer 4. 88 = at rad 4.8 s 1.31 radis linear speed v=rw = 7.3 m) x C1.31 rad/s) = 1.7 ms acceleration ar = radial acceleration = wer =(1.31² x 1.3 = 2.9 m/s2 a = langential acceleration = r. (duo pot) (as wao w=constant) a= (2:2, 0:0) m/s2