two forces on the ball
... tension and gravity
gravity equals the vertical component of tension
centripetal force is the horizontal component
m v^2 / [1.75 sin(78.0º)] =
... m g tan(78.0º)
A ball is on the end of a rope that is 1.75 m in length. The ball and rope are attached to a pole and the entire apparatus, including the pole, rotates about the pole's symmetry axis. The rope makes an angle of 78.0°
with respect to the vertical. What is the tangential speed of the ball? I have been trying to use the circular motion kinematics equations to somehow solve for radial velocity or acceleration but I feel like there isn't enough information here.
1 answer