Platform of height , Physics

Assignment Help:

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.


Related Discussions:- Platform of height

Instantaneous angular acceleration, Concurrent angular acceleration means a...

Concurrent angular acceleration means angular acceleration at a particular dot instant at t = t 1 mathematically it is given as,

Final Problem, A 1.6 kg man swings from a 2 meter rope at an angle of 45 de...

A 1.6 kg man swings from a 2 meter rope at an angle of 45 degrees after swinging 20 degrees past the center point, the rope is cut by a razor. The man goes flying through the air

Pressure, 3 scenarios: You have an object such as a jar, and you submerge i...

3 scenarios: You have an object such as a jar, and you submerge it under water to 50m depth. (Every 10m down increases pressure by 1 bar, thus the pressure is 5 bar). Scenario 1:

Radioactive substance will be left after 5 half -life period, Q. What perce...

Q. What percentage of a given radioactive substance will be left after 5 half -life periods? The residual part of radioactive substance = ( ½ ) 5 Therefore the percentage

Ammeter, what happened if we connect ammeter parallel to the resistor, whos...

what happened if we connect ammeter parallel to the resistor, whose current we wnt to find ,rather than in series?

Colour code of resistors, Colour code of resistors: The current method ...

Colour code of resistors: The current method of colour code marking of resistors is the Band System. Close to one end of the resistor are four coloured bands (there may

Transistors, Construction of Depletion type of MOSFET

Construction of Depletion type of MOSFET

Estimate the temperature of vapour pressure, The vapour pressure of a subst...

The vapour pressure of a substance at  20.0 o C is 38.1  kPa and its enthalpy of vaporisation is 49.6  kJ mol -1 . Estimate the temperature at which its vapour pressure is 80.0 k

Distance of cosest approach, Why can''t an alpha particle touch the periph...

Why can''t an alpha particle touch the periphery of nucleus?

Gold, Gold:                          Atomic number ...

Gold:                          Atomic number 79 Symbol Au Atomic weight 196.9665 discov

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd