Quantum mechanics, Mechanical Engineering

Assignment Help:

A ball is dropped from a height .If it takes0.200 second to cross the last 6.00 m before hitting the ground ,find the height  from which it was dropped .

Ans) We need to find H

Using second eqn of motion:

6=0.2u-5(0.04).............................u is velocity at h=6m

u=31m/s

Conserving energy:

mgh=0.5m(31)2.......................................Datum line for P.E is at 6 m from ground. h= H-6

=>h=48.05m

=>H=54.05m.


Related Discussions:- Quantum mechanics

Determine the economic order quantity, Determine the economic order quantit...

Determine the economic order quantity: Determine the economic order quantity and the reorder point. Given Annual demand (D) = 2,000 units Average daily demand (d) = 2,00

Explain conveyor and auger, Conveyor and auger Two Hydraulic motors are...

Conveyor and auger Two Hydraulic motors are provided for individual control of two conveyors and Auger, which are provided for individual control of material on both the sides

Conventional priority rules, Conventional Priority Rules  The standard ...

Conventional Priority Rules  The standard solution for production scheduling (routing and sequencing) difficulties is the utilization of priority rules. A priority rule is an o

Urine preservatives - specimen collection, Urine preservatives - Specimen c...

Urine preservatives - Specimen collection: Urine preservatives : preservatives have different roles but are usually added to reduce bacterial action or chemical decompo

Heat loss in acylindrical pipe, Ask question #Minimum 1. Research the topic...

Ask question #Minimum 1. Research the topic of heat loss in a cylindrical pipe. Explain which laws of physics are used to discuss heat loss in a pipe, and briefly explain how the f

Determine change in length of the bar, Determine change in length of the ba...

Determine change in length of the bar: A steel bar is subjected to loads as shown the given figure. Determine change in length of the bar ABCD of 18 cm diameter. E = 180

Welding procedure and performance qualification, WELDING PROCEDURE AND PERF...

WELDING PROCEDURE AND PERFORMANCE QUALIFICATION A total quality assurance scheme, embracing all aspects of manufacture would have necessarily made all attempts to ensure

Larson-miller parameter, Larson-Miller parameter: For material of exam...

Larson-Miller parameter: For material of example of calculate life in hours at temperature of 900oC, and at σ = 20 MPa. Solution Larson-Miller parameter is given by

Determine the expression for crippling load, Illustrate the assumptions mad...

Illustrate the assumptions made in Euler's theory. Determine the expression for crippling load for a long column when one end of the column is fixed and other end is hinged.

Describe soldering, Soldering Soldering is defined as a metal joining...

Soldering Soldering is defined as a metal joining process wherein coalescence is produced by heating the surfaces to be joined to a suitable temperature and melting the fille

3/8/2013 6:28:27 AM

we consider a ball it is dipped from a height equal to square of the intiial distance by 2 multiplide with g(9.8),

i.e ans is 1.83 metres.

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