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A lift can move upward or downward. A li...

A lift can move upward or downward. A light inextensible string fixed from ceiling of lift when a frictionless pulley and tensions in string `T_(1)`. Two masses of `m_(1) and m_(2)` are connected with inextensible light string and tension in this string `T_(2)` as shown in figure. Read the questionbs carefully and answer

If `m_(1)=m_(2) and m_(1)` is moving at a certain instant with velocity `v` upward with respect to lift and the lift is moving in upward direction with constant acceleration `(a lt g)` then speed of `m_(1)` with respect to lift :

A

`T_(1):T_(2):T_(3)::1:1:1`

B

`T_(1):T_(2):T_(3)::6:5:3`

C

`T_(1):T_(2):T_(3)::3:5:5`

D

`T_(1):T_(2):T_(3)::6:5:6`

Text Solution

Verified by Experts

The correct Answer is:
B

`T_(1) mg=mxx2 thereforeT_(1)=mxx12`
`T_(2)=mg T_(2)=mxx10`
`mg-T_(3)=mxx4 T_(3)=mxx16`
`T_(1):T_(2):T_(3)=6:5:3`
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