Guest

Grade:12

4 Answers

udit patel
36 Points
10 years ago

dear harish,

correct option is A.

as in the top position the force of gravity also contribute max.(as no sideway component) to centripital acceleration thus tension has a lower value.

u. s. p. srinivas aditya
32 Points
10 years ago

m: MASS OF STONE

Fc: CENTRIFUGAL FORCE

T: TENSION ON THE STRING

IN CASE (A),

T=Fc+mg

IN CASE(B),

T=Fc-mg

IN CASE(C),

T=Fc

HENCE, TENSION WILL BE MINIMUM WHEN STONE IS AT HIGHEST POINT OF ITS PATH!!

vivek maskara
35 Points
10 years ago

tension is minimum at the highest point.

both mg and mv2/r

paras sharma
34 Points
9 years ago

the correct option is a .at top most point tension becomes zero

Think You Can Provide A Better Answer ?

Provide a better Answer & Earn Cool Goodies See our forum point policy

ASK QUESTION

Get your questions answered by the expert for free