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A-person-in-lift-is-holding-a-water-jar-which-has-a-small-hole-at-the-lower-end-of-its-side-When-the-lift-is-at-rest-the-water-jet-coming-out-of-the-hole-hits-the-floor-of-the-lift-at-a-distance-d-




Question Number 20014 by Tinkutara last updated on 20/Aug/17
A person in lift is holding a water jar,  which has a small hole at the lower end  of its side. When the lift is at rest, the  water jet coming out of the hole hits  the floor of the lift at a distance d of  1.2 m from the person. In the following,  state of the lift′s motion is given in List  I and the distance where the water jet  hits the floor of the lift is given in List  II. Match the statements from List I  with those in List II.  List I  P. Lift is accelerating vertically up  Q. Lift is accelerating vertically down  with an acceleration less than the  gravitational acceleration  R. Lift is moving vertically up with  constant speed  S. Lift is falling freely  List II  1. d = 1.2 m  2. d > 1.2 m  3. d < 1.2 m  4. No water leaks out of the jar
$$\mathrm{A}\:\mathrm{person}\:\mathrm{in}\:\mathrm{lift}\:\mathrm{is}\:\mathrm{holding}\:\mathrm{a}\:\mathrm{water}\:\mathrm{jar}, \\ $$$$\mathrm{which}\:\mathrm{has}\:\mathrm{a}\:\mathrm{small}\:\mathrm{hole}\:\mathrm{at}\:\mathrm{the}\:\mathrm{lower}\:\mathrm{end} \\ $$$$\mathrm{of}\:\mathrm{its}\:\mathrm{side}.\:\mathrm{When}\:\mathrm{the}\:\mathrm{lift}\:\mathrm{is}\:\mathrm{at}\:\mathrm{rest},\:\mathrm{the} \\ $$$$\mathrm{water}\:\mathrm{jet}\:\mathrm{coming}\:\mathrm{out}\:\mathrm{of}\:\mathrm{the}\:\mathrm{hole}\:\mathrm{hits} \\ $$$$\mathrm{the}\:\mathrm{floor}\:\mathrm{of}\:\mathrm{the}\:\mathrm{lift}\:\mathrm{at}\:\mathrm{a}\:\mathrm{distance}\:{d}\:\mathrm{of} \\ $$$$\mathrm{1}.\mathrm{2}\:\mathrm{m}\:\mathrm{from}\:\mathrm{the}\:\mathrm{person}.\:\mathrm{In}\:\mathrm{the}\:\mathrm{following}, \\ $$$$\mathrm{state}\:\mathrm{of}\:\mathrm{the}\:\mathrm{lift}'\mathrm{s}\:\mathrm{motion}\:\mathrm{is}\:\mathrm{given}\:\mathrm{in}\:\mathrm{List} \\ $$$$\mathrm{I}\:\mathrm{and}\:\mathrm{the}\:\mathrm{distance}\:\mathrm{where}\:\mathrm{the}\:\mathrm{water}\:\mathrm{jet} \\ $$$$\mathrm{hits}\:\mathrm{the}\:\mathrm{floor}\:\mathrm{of}\:\mathrm{the}\:\mathrm{lift}\:\mathrm{is}\:\mathrm{given}\:\mathrm{in}\:\mathrm{List} \\ $$$$\mathrm{II}.\:\mathrm{Match}\:\mathrm{the}\:\mathrm{statements}\:\mathrm{from}\:\mathrm{List}\:\mathrm{I} \\ $$$$\mathrm{with}\:\mathrm{those}\:\mathrm{in}\:\mathrm{List}\:\mathrm{II}. \\ $$$$\boldsymbol{\mathrm{List}}\:\boldsymbol{\mathrm{I}} \\ $$$$\boldsymbol{\mathrm{P}}.\:\mathrm{Lift}\:\mathrm{is}\:\mathrm{accelerating}\:\mathrm{vertically}\:\mathrm{up} \\ $$$$\boldsymbol{\mathrm{Q}}.\:\mathrm{Lift}\:\mathrm{is}\:\mathrm{accelerating}\:\mathrm{vertically}\:\mathrm{down} \\ $$$$\mathrm{with}\:\mathrm{an}\:\mathrm{acceleration}\:\mathrm{less}\:\mathrm{than}\:\mathrm{the} \\ $$$$\mathrm{gravitational}\:\mathrm{acceleration} \\ $$$$\boldsymbol{\mathrm{R}}.\:\mathrm{Lift}\:\mathrm{is}\:\mathrm{moving}\:\mathrm{vertically}\:\mathrm{up}\:\mathrm{with} \\ $$$$\mathrm{constant}\:\mathrm{speed} \\ $$$$\boldsymbol{\mathrm{S}}.\:\mathrm{Lift}\:\mathrm{is}\:\mathrm{falling}\:\mathrm{freely} \\ $$$$\boldsymbol{\mathrm{List}}\:\boldsymbol{\mathrm{II}} \\ $$$$\mathrm{1}.\:{d}\:=\:\mathrm{1}.\mathrm{2}\:\mathrm{m} \\ $$$$\mathrm{2}.\:{d}\:>\:\mathrm{1}.\mathrm{2}\:\mathrm{m} \\ $$$$\mathrm{3}.\:{d}\:<\:\mathrm{1}.\mathrm{2}\:\mathrm{m} \\ $$$$\mathrm{4}.\:\mathrm{No}\:\mathrm{water}\:\mathrm{leaks}\:\mathrm{out}\:\mathrm{of}\:\mathrm{the}\:\mathrm{jar} \\ $$
Commented by Tinkutara last updated on 26/Aug/17
help pls
$$\mathrm{help}\:\mathrm{pls} \\ $$

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