1.

Two children are playing a game in which they try to hit a small box using a spring loaded machine gun, which is fixed rigidly to a table at a height h above the top of the box. The spring hasspring constant k and the box is at a horizontal distance l from O. The first child compresses the spring a distanc x_(0) and find that the marble falls short of box by a horizontal distance y. The second child compreses the spring by an extra amount Deltax so that marble lands in the box. The value of Deltax is

Answer»

`lsqrt((MG)/(HK))`
`lsqrt((2MG)/(hk))`
`2ysqrt((mg)/(hk))`
`ysqrt((mg)/(2hk))`

ANSWER :D


Discussion

No Comment Found