Answer
108 N
Explanation
The centripetal force is the force that keeps an object in a circular motion.
Centripetal force= mω²r
Where m is the mass, ω is angular velocity and r is the length of the string.
But ω = v/r. Where v is the tangential speed.
∴ F = mω²r = mv²/r
F = (1.5 × 6²) / 0.5
= \(\frac{54}{0.5}\)
= 108 N
