Find out the velocity of the bullet, Mechanical Engineering

Find out the velocity of the bullet:

A bullet of weight W1  = 5 N is fired into a body B2 of weight W2  = 45 N suspended by a string of length L = 1 metres. Because of impact, body B2 swings through an ∠ θ = 60o. If the impact is fully plastic, find out the velocity of the bullet.


 Refer Figure. Let initial velocity of the bullet by V1.

 Initial velocity of B2 = V2 = 0

After impact, we have, by principle of conservation of momentum

                                   (m1 + m2) VC = m1 V1            --------- (I)

By using principle of conservation of energy for the second event when body B2 swings through a maximum ∠ θ = 60o,

((W1 + W2) /2 g)(Vc) 2 = (W1 + W2) × L × (1 - cosθ)

∴ V 2  = 2 g L (1/2)   = 9.8 × 1

∴ Vc  = 3.13 m / sec .

Posted Date: 1/29/2013 7:24:00 AM | Location : United States

Related Discussions:- Find out the velocity of the bullet, Assignment Help, Ask Question on Find out the velocity of the bullet, Get Answer, Expert's Help, Find out the velocity of the bullet Discussions

Write discussion on Find out the velocity of the bullet
Your posts are moderated
Related Questions
DESIGN FACT DATA: ?A) Torque capacity for traction motor of screw conveyor-1660 N-m. ? B) RPM of Traction motor-115 rpm. ? C) Pressure require for operating the telescopi

Describe the key terms i. Write two differences between turbine and boiler. ii. Write importance of mollier's diagram iii. Compare the rankine cycle with carnot cycle in k

Stainless Steel Electrodes A variety of stainless steel electrodes are now being manufactured to produce weld metal similar to composition of most base metals. However, the analy

Calculate the angular acceleration of the pulleys: The compound pulley system has a mass of 30 kg and a radius of gyration of 450 mm. Calculate the tension in each cord and th

Q. What do you know about Direct welds? It is a welding method in which one or more electrodes oppose each other, contacting both sides of the work and with the current passing

Q. Describe Polythionic Acid Corrosion? Although it is not typically thought of as high temperature corrosion, polythionic acid stress corrosion cracking occurs in areas where

procedure for measuring area of square by planimeter

It is desired to produce an iron-carbon alloy that has a minimum hardness of 200 HB and a minimum ductility of 35%RA. Is such an alloy possible? If so, what will be its composition

Orthographic assembly drawing: On MyUni (and shown above)  there is a figure of a small  partially assembled single-cylinder 2-stroke engine  that you need  to model. Drawings