Question

An object with a mass of 1 kg is attached to one end of a cord 10 m long. The cord will break if its tension exceeds 10 N. The object is swung in a

horizontal circle on a frictionless surface. The other end of the cord remains fixed. Find the maximum speed the object can attain without breaking
the cord.
10 m/s
20 m/s
25 m/s
15 m/s

Answer 1

10 m/s

Step-by-step explanation:

∑F = ma

T = m v² / r

10 N = (1 kg) v² / (10 m)

v = 10 m/s