The load on a thread 50 cm long rotates at a speed of 5 m / s. Find the acceleration of the load?

R = 50 cm = 0.5 m.
V = 5 m / s.
a -?
When moving in a circle with a constant absolute speed, the direction of the speed always changes. The speed is always tangential to the path of motion. Since the direction of the speed changes, it means that the body moves with centripetal acceleration a, the value of which is determined by the formula: a = V ^ 2 / R, where V is the linear speed of movement, R is the radius of curvature of the trajectory.
a = (5 m / s) ^ 2 / 0.5 m = 50 m / s ^ 2.
Answer: the load is moving with acceleration a = 50 m / s ^ 2.