A simple pulley with the given
radius r used to lift heavy objects is positioned 10 feet above
ground level. Given that the pully rotates �°, determine the height
to which the object is lifted.
(a) r � 4 in., � � 720°
2 answers
2 ft
(a)r=4in, θ=720°
720°(π/180°)
=4π
S=rθ
S=(4in)(4π)
S=16π
S≈50.27in
720°(π/180°)
=4π
S=rθ
S=(4in)(4π)
S=16π
S≈50.27in