Find out angular displacement of a partical, Mechanical Engineering

Find out angular displacement of a partical:

The angular displacement of a rotating body starting from rest is defined by φ (t ) = 4 t 3  - 3 t 2 . Find out its angular displacement, angular velocity and angular acceleration at t = 2 sec.

Solution

At t = 2 sec

φ = 32 - 12 = 20 radians

ω= d φ/dt = 12 t - 6 t dt

At t = 2 sec

∴ ω = 48 - 12 = 36 rad / sec

At t = 2 sec

 α = d 2 φ /d t 2 = 24 t - 6

α = 48 - 6 = 42 rad / sec 2 .

Posted Date: 1/29/2013 2:01:46 AM | Location : United States







Related Discussions:- Find out angular displacement of a partical, Assignment Help, Ask Question on Find out angular displacement of a partical, Get Answer, Expert's Help, Find out angular displacement of a partical Discussions

Write discussion on Find out angular displacement of a partical
Your posts are moderated
Related Questions
Calculate the Spindle Speed in Milling Operation Calculate the spindle speed (N) if a copper job is to be milled by  (a) stellite cutter  (b) cemented carbide cutter.

Service duty point: 3 m3/h Backwash duty point: 9 m3/h Part (a) What is the speed of the pump to achieve the service and backwash flow rates ? Part (b) What would be the best

Braking System: A brake is a component of a motorcycle which is used to apply frictional resistance to a moving vehicle to stop or retard it by absorbing its kinetic energy. The f

How is bearing capacity of soil varied? The bearing capacity of soil varies not only with its strength but also with the magnitude and distribution of the load. When a load Q,

Working of stream engine: The high pressure steam from boiler is supplied to the steam chest. The high pressure steam enters cylinder through inlet port and exerts pressure on

Comprehensive Awareness: Successful entrepreneurs should have ability to comprehend complex situations that may include planning, making strategic decisions, and working on multip


(a) Describe the types of wear and causes of wear. Draw figures whenever necessary. (b) Describe any 4 cutting tool materials in detail. (c) Describe the various reasons for

Manifolds The surface of a solid must satisfy some conditions so that the resulting solid is well-behaved. This is the so-called manifold condition. While recent research has s

Steels Plain carbon & C - Mn steels : Because of low heat input, in as welded condition, the micro structures of the autogenous process welds predominantly show marten