Find out the centre of gravity of a wire, Mechanical Engineering

Assignment Help:

Find out the centre of gravity of a wire:

Find out the C. G. of a wire of uniform cross-section bent into shape of a semicircle as illustrated in Figure.

2204_Thin uniform wire bent.gif

Solution

 Refer to Figure illustrating length of wire ACB = π a, where a = radius of semicircle with center at O.

For an element (δL) of this wire that = a d θ

2454_Find out the centre of gravity of a wire.png

∴ L x¯ = ∫ δ L × x = ∫ (a d θ) × (a cos θ)

1113_Find out the centre of gravity of a wire1.png

= 2 a 2

∴ x¯ =  2 a2/ π a =  2 a/ π = 0.637 a


Related Discussions:- Find out the centre of gravity of a wire

Calculate critical speed of shaft, The rotor of a turbo charged having mass...

The rotor of a turbo charged having mass of 10 Kg is keyed to the centre of 25 mm diameter of steel shaft of 400 mm between bearings. Calculate : (i) Critical speed of shaft.

Cover left crank case and check shifter drum, Open cover left crank case an...

Open cover left crank case and check shifter drum bolt and washer: Check shifter drum bolt torque and washer direction and avail ability.

Explain fundamental of metal casting, Q. Explain Fundamental of metal casti...

Q. Explain Fundamental of metal casting? (1)Melting the material (2)Allowing the molten metal to cool and solidify in the mould "A plane where the castings are made is ca

Find the magnitude of force, Find the magnitude of force: Q: The two ...

Find the magnitude of force: Q: The two parallel forces are acting at point A and B respectively is equivalent to force of  100 N acting downwards at point C and coupl

What do you mean by machinibility, (a) What do you mean by machinibility ? ...

(a) What do you mean by machinibility ? Discuss the factors which come into play while evaluating the machinability of any metal. Also describe machinability index. (b) Brass co

Hot and cold working, What is the difference between hot and cold working

What is the difference between hot and cold working

Bending strength machine, what is bending strength machine parts of bendin...

what is bending strength machine parts of bending strength machine and description about different parts of bending strength machine description about bending srength machine and

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