When the string attached to the body moving in a circle breaks then force acting on the string at that instant is;
A) 0
B) infinity
C) cannot be determined
D) None of above

Question

When the string attached to the body moving in a circle breaks then force acting on the string at that instant is;
A) 0
B) infinity
C) cannot be determined
D) None of above

anonymous · Answer

It is zero as there is no tension in the string and it becomes loose.

anonymous · Answer

But wouldn't there still be force of gravity on it?

anonymous · Answer

if its on earth yes, if in space no

anonymous · Answer

Okay thank you. Just another quick one: 
By increasing frequency, resonance will

a) decrease
b) increase
c) remains same
d) none

anonymous · Answer

Can you please explain a bit?

anonymous · Answer

@emcrazy14 what is the measure of resonance ?

anonymous · Answer

So, if your system is in resonance for some frequency, and now you start changing frequency (increase it or decrease it, doesn't matter), the system will start loosing resonance. So, resonance decreases.

anonymous · Answer

@emcrazy14 let me tell u..in ur ques the ques is basically from the tension part..hence he talks about tension force and not gravitational...so we assume the force now to be zero..