Question 220: Laws of Motion

Question

A mass m is attached to a thin wire and whirled in a vertical circle. The wire is most likely to break when :

Accepted Answer

Apply Newtons's 2nd law for equation of
motion
T - mg cos $$	heta $$ = $${{m{v^2}} \over R}$$
T will be maximum when
$$	heta $$ = 0ÃÂ°,
When mass is at lowest point the chance of breaking is maximum.

Answer

the wire is horizontal

Answer

inclined at an angle of 60o from vertical

Answer

the mass is at the lowest point

Answer

the mass is at the highest point

Laws of Motion

A mass m is attached to a thin wire and whirled in a vertical circle. The wire is most likely to break when :

Choose the correct answer: