Answer:
173 kg
Explanation:
Centripetal acceleration is equal to the square of the tangential speed divided by the radius of curvature. From Newton's second law, the net force on an object is equal to the mass times the acceleration.
Sum of forces in the centripetal direction:
∑F = ma
T = m v² / r
173 N = m (2 m/s)² / (4 m)
m = 173 kg
