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# phy101 assignment 2 spring 2014 due date 26-5-2014

Assignment 2: (Spring 2014)
PHYSICS (PHY101)
TOTAL MARKS: 30
Due Date: 26/05/2014
DON’T MISS THESE Important instructions:

To solve this assignment, you should have good command over first 16 lectures.
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This is not a group assignment, it  is an individual assignment so be careful and
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other,  both  will  be  awarded  zero  marks.  It  also  suggests  you  to  keep  your
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be copying or letting others copy.

Don’t wait for the last date to submit your assignment.
Question. No: 1

A  lift  is  filled  with  patients  has  a  total  mass  of  2055  kg.  As  the  lift  begins  to  go  up,  the
acceleration  is  0.75  m/s
2
.  What  is  the  tension  in  the  rope  that  is  lifting  the  lift?  Validate  your
solution as well.                                                                                                                   Marks 5
Question. No: 2

A man pushes a lawnmower with a force of 170 N at an angle of 37° down from the horizontal.
The lawn is 12.0 m wide and requires 16 complete trips across and back. How much work does
he do?                                                                                                                                   Marks 6

Question. No: 3

A bus’s tire rotates at an initial angular speed of 20.5 rad/s. The driver accelerates, and after 4.5 s
the tire’s angular speed is 29.0 rad/s. What is the tire’s average angular  acceleration during the
4.5 s time interval?                                                                                                               Marks 7
Question. No: 4

An object’s momentum depends upon the object’s

a)  mass, speed and acceleration.
b)  mass, speed and direction of motion.
c)  speed and acceleration.
d)  velocity and direction of motion.
e)  mass and acceleration.

Write the reason of your above selected choice as well.                                          Marks 3+3 = 6

Question. No: 5

You drive a nail horizontally into a wall, using a 0.52 kg hammerhead. If the hammerhead is
moving horizontally at 4.5 m/s and in one blow drives the nail into the wall a distance of 2.9 cm,
determine the average force acting on

(b) the nail                                                                                                                        Marks = 6

::::::::::::::::::::::::::: Wish you good luck::::::::::::::::::::::

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### Replies to This Discussion

i need too..

Dear Students Don’t wait for solution post your problems here and discuss ... after discussion a perfect solution will come in a result. So, Start it now, replies here give your comments according to your knowledge and understandings....

tariq bhai ap complete solution de do

yr sol uplod krdy koi ....

Yaar Koi Ty Entry marooooo..........

iqra send me phy 101 solution

only last question is missing wo me ne khud b ni kiya baki 4 hain is me

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OO thankx a lot......

Question 4 khud bna lain gy ulta seedha....

Yar ! ye 1st question main ans ko Validate kerney se kiya matlab ho ga?

and any idea about Last qustion??????

use dis formula in the last question..

FD=1/2final velocity*m-1/2initial velocity*m

physics last question solution

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