Platform of height , Physics

A tank is filled up to a height 2H WITH A LIQUID and is placed on a platform of height H from the ground .the distance x from the ground where a small hole is punched to get maximum range R is?

Ans) let the distance be x.

then range(R)=2 . [(3H-x).x]^1/2 ......................... [ since t=(2x/g)^1/2 and v={2g(3H-x)}^1/2  ]

 R^2 = 4.(3Hx-x^2)

 for R to be max...R^2 should be max.

hence differentiating and putting d(R^2)/dx=0.
we get 3H-2x=0

x=3H/2.

Posted Date: 3/25/2013 12:59:12 AM | Location : United States







Related Discussions:- Platform of height , Assignment Help, Ask Question on Platform of height , Get Answer, Expert's Help, Platform of height Discussions

Write discussion on Platform of height
Your posts are moderated
Related Questions

What are intrinsic and extrinsic semiconductors? A semiconductor is a material that has an electrical conductivity among that of a conductor and an insulator. In a semiconducto

Q. An emf of 5 V is persuading when the current in the coil changes at the rate of 100 As-1. Find the coefficient of self induction. Solution: Induced emf   e = - L dI/dt

What is radium used for? Radium was formerly used in self-luminous paints for nuclear panels, watches, aircraft switches, clocks, and instrument dials. More than 100 former wat

What is artificial transmutation? Describe the experiment that led to the discovery of artificial transmutation? Why only high energy α - Particles were used in the discovery of a

Beats: The periodic vibrations in intensity or loudness of sound because of superposition of two sound waves of similar amplitude and slightly different frequencies are known a

NEWTON'S THIRD LAW OF MOTION: This law can be described as "Actions and reactions are equal and opposite".                                  OR To every action there is a

Explain Crohn disease Crohn's disease:  a chronic, recurrent disease characterized by patchy inflammation of any portion of digestive tract from  the mouth to anus.

How is plastic clad silica fibre used in optical fibres? Plastic clad silica fibre: Plastic clad silica fibre (PCS) is other type of optical cable. This has an attenuation l

what is cruisiing mean