PHYSICS (PHY101)
TOTAL MARKS: 0
Due Date: 29/05/2017
DON’T MISS THESE Important instructions:
To solve this assignment, you should have good command over first 18th lectures.
Upload assignments (Microsoft word) properly through LMS, (No Assignment will be accepted through email).
Write your ID on the top of your solution file.
All students are directed to use the font and style of text as is used in this document.
Don’t use colorful back grounds in your solution files.
Use Math Type or Equation Editor etc for mathematical symbols.
Write to the point and avoid from unnecessary explanation. Don’t copy/paste from internet or any other source.
This is not a group assignment, it is an individual assignment so be careful and avoid copying others’ work. If some assignment is found to be copy of some other, both will be awarded zero marks. It also suggests you to keep your assignment safe from others. No excuse will be accepted by anyone if found to be copying or letting others copy.
Don’t wait for the last date to submit your assignment.
*Note: Please note that non graded assignment given for your practice and enhance understanding, your solution will be marked by Instructor with result declare, but marks would not be included in your final grades. On the other hand the marks obtained in graded assignment will be included in final result marks.
Question. No: 1
A pendulum consists of a uniform disk with radius 10.0 cm and mass 500 g attached to a uniform rod with length 500 mm and mass 270 g (see figure below). (a) Calculate the rotational inertia of the pendulum about the pivot. (b) What is the distance between the pivot and the center of mass of the pendulum? (c) Calculate the period of oscillation. Marks =10
Question. No: 2
Explain the following terms. Marks = 2*5 + 5 =15
a) Steady flow, Unsteady flow, Compressible fluid, Incompressible fluid and Viscous fluid.
b) Why do airplane pilots prefer to take off into the wind?
:::::::::::::::::::::::::: Wish you good luck::::::::::::::::::::::
Tags:
have any solution plz
ASSIGNMENT # 2 (PHY101)
STUDENT ID: bc160404071
Solution 1.
Itot = Iro + Ido = (1/3)*Mr*Lr^2 + [ Idcm + Md*(Rd + Lr)^2 ]
PART (a)
Itot = (1/3)*Mr*Lr^2 + [ (1/2)*Md*Rd^2 + Md*(Rd + Lr)^2 ]
where the parallel axis theorem has been used to get the moment of inertia
Ido of the disk about the pivot point O. Substituting the values
Mr = 270 g = 0.270 kg
Lr = 500 mm = 0.5 m
Md = 500 g = 0.500 kg ,
Rd = 10 cm = 0.10 m
we get
Itot = 0.205kg*m^2
ANSWER: 0.205 kg*m^2
PART (B)
The position of the center of mass relative to the pivot point O is given by
Ycm = [ Mr*(Lr/2) + Md*(Lr +Rd) ] / [ Mr + Md ]
Substituting the values, we get
Ycm = 47.7 cm
ANSWER:Ycm= 47.7 cm
PART (C)
The period of oscillation of a physical pendulum is given by
T = 2*π*sqrt [ I /(M*g* D ) ]
where D is the distance of the mass M from the axis of rotation and I is
the moment of inertia of the disk about the axis of rotation. Substituting
the values
I = 0.205 kg*m^2
M = 0.770 kg
D = Ycm = 47.7 cm
we get
T = 1.53 s
ANSWER: 1.53 s
………….
SOLUTION 2.
a)1. A flow in which the velocity of the fluid at a particular fixed point does not change with time also called stationary flow.
a)2. If at any point in the fluid, the conditions change with time, the flow is described as Unsteady Flow.
a)3. Compressible fluid (gas dynamics) is that deals with flows having significant changes in fluid density. Gases mostly display such behavior.
a)4. incompressible fluid (isochoric flow) refers to a fluid in which the material density is constant within a fluid.
a)5. The viscosity of a fluid is a measure of its resistance to gradual deformation by shear stress or tensile stress. For liquids, it corresponds to the informal concept of "thickness"; for example, honey has a much higher viscosity than water.
b) Airplanes fly thanks to lifting force that is generated by the wings. The wings do this by moving forward through the air. All else being equal, the faster the wings move through the air, the greater the lift.
Flying into the wind causes the wings to move through the air more quickly without increasing the speed of the aircraft in relation to the ground. This means that an aircraft flying into the wing can get into the air more quickly.
Hey brother what is meant by the non-graded assignment?
means physically u'll not get the marks but the image. :)
assignment
© 2021 Created by + M.Tariq Malik. Powered by
Promote Us | Report an Issue | Privacy Policy | Terms of Service
We are user-generated contents site. All product, videos, pictures & others contents on site don't seem to be beneath our Copyrights & belong to their respected owners & freely available on public domains. We believe in Our Policy & do according to them. If Any content is offensive in your Copyrights then please email at m.tariqmalik@gmail.com with copyright detail & We will happy to remove it immediately.
Management: Admins ::: Moderators
Awards Badges List | Moderators Group
All Members | Featured Members | Top Reputation Members | Angels Members | Intellectual Members | Criteria for Selection
Become a Team Member | Safety Guidelines for New | Site FAQ & Rules | Safety Matters | Online Safety | Rules For Blog Post