Assignment 2: (Spring 2014)
TOTAL MARKS: 30
Due Date: 26/05/2014
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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
. 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
(a) the hammerhead
(b) the nail Marks = 6
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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
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