Question

Three identical smooth cylinders each of mass 'm' are kept on a smooth horizontal surface as shown in figure. A horizontal force 'F' is applied on the cylinder A. Line of action of force F passes through mid-point (center) of cylinder A.

a.) What is minimum value of F such that all three cylinders move together?


b.) What is maximum value of F such that all three cylinders move together?

Answer 1

Please help:)

Answer 2

Please don't use Energy Work Power concept
Because I haven't studied it yet.

Answer 3

This is my request.

Answer 4

i don't know about torque:(

Answer 5

We have to solve it by only analysis of forces.
:)

Answer 6

Really sorry but I am not getting wt u wanna tell me?
i think i must tell u answers
a.) mg/sqrt{3}
b.) sqrt{3}mg.

Answer 7

o.O

Answer 8

gr8:)

Answer 9

but i must learn wt is torque?

Answer 10

moment of force
http://en.wikipedia.org/wiki/Torque

Answer 11

oh
but plz tell me why did u analyzed torque on sphere C?

Answer 12

this is just newton's law ... conservation of momentum.

Answer 13

oh i see:)
thanx:)
but plz anyone help me for a.) too.

Answer 14

I'm trying to see what concept is used here.

Answer 15

thanx:)

Answer 16

can't seem to concentrate ... let me do this on copy.

Answer 17

np:)
sorry i was somewhere else:)