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

Determine the resistance of the resistor, A 100V battery is linked across a...

A 100V battery is linked across a resistor and causes a current of 5mA to ?ow. Verify the resistance of the resistor.  If the voltage is now decreased to 25V, what will be t

Find the resistance r in the circuit, The current is an RL circuit drops fr...

The current is an RL circuit drops from 1.1 A to 13 mA in the first second following removal of the battery from the circuit. If L is 12H, find the resistance R in the circuit.

Define hydrogen rocket, Define Hydrogen Rocket? The reaction chamber ...

Define Hydrogen Rocket? The reaction chamber of a rocket engine is supplied with a mass flow rate m of sufficient oxygen and hydrogen to allow complete burning of the fuel an

Angle calculate by a body be projected, At what angle should a body be pr...

At what angle should a body be projected with a given velocity 24m/s just to pass over the obstacle 14m high at a given distance of 24m. Solution:   14=24xtan(θ)-(g*)(24 2

Define the cylinders and heat bath, Define the Cylinders and Heat Bath? ...

Define the Cylinders and Heat Bath? Regard as a cylinder 1 m long with a thin, massless piston clamped in such a manner that it divides the cylinder into two equal parts. The

Invention for that shockley-brattain-bardeen won nobel prize, Shockley, Bra...

Shockley, Brattain and Bardeen won a Nobel Prize for what small invention? Ans: Shockley, Bardeen and Brattain won a Nobel Prize for small invention of transistor.

Electric field in the evacuated region of space, The electric potential at ...

The electric potential at a point in a consistent electric field in an evacuated region of space is 4 . 0 volts. The electric potential at a end 25 cm to the east of the first poin

Lens, types of lenses and their explanation

types of lenses and their explanation

Work And Energy, mass of body= 4 kg is dropped form height= 45 m Calculate ...

mass of body= 4 kg is dropped form height= 45 m Calculate the kinetic energy just before hitting the ground

Potential barrier, The potential difference created across the P-N junction...

The potential difference created across the P-N junction due to the diffusion of electron and holes is called potential barrier. For and for silicon    On the average the

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