Grade 12Mechanics
4 Answers
udit patel
Approved Tutor Answer14 Years agodear 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
Approved Tutor Answer14 Years agom: 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
tension is minimum at the highest point.
both mg and mv2/r
paras sharma
the correct option is a .at top most point tension becomes zero
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