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# Assignment No. 01 Semester: Spring 2015 PHY101 Physics Due Date:May 28, 2015

Assignment 1: (Spring 2015)
PHYSICS (PHY101)
TOTAL MARKS: 25
Due Date: 28/05/2015
DON’T MISS THESE Important instructions:
To solve this assignment, you should have good command over first 10 lectures.
Upload assignments (Microsoft word) properly through LMS, (No Assignment will
be accepted through email).
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.
Question # 1
A bat comes into contact with a cricket ball as shown in the
figure on right side, applying a force to the right. Marks 7
Which of the following statement is wrong?
a) The force of the bat on the ball is greater than the
force of the ball on the bat.
b) The force of the bat causes the ball to accelerate to
right.
c) During the time of contact, the ball applies a force
on the bat to the left.
d) During the time of contact, the bat will accelerate to
the left.
e) That experiences a greater acceleration than the bat
does.
Note: Select the best choice given above (a to e) according to your best of knowledge, and also
write the reason of your selected choice as well.
Question # 2
A car travels 1km in the positive x-direction, then turns around and travels 500m in the opposite
direction as shown, and takes 1.67mintus total for this movement. What is the average velocity
of the car during this time? Marks 5
Question # 3
The string provides an upward force on the block which is resting on the table. What is the
normal force of the table on the block? Marks 5
Question # 4
Give the short answers of following questions. Answer should not greater than one line.
a) An object has a speed of 25 km/h. It swerves to the left but maintains the same speed.
Was a force involved? Marks 3+3+2 = 8
b) An object is moving. A net force must be acting on it. Give your opinion.
c) What two units of measurement are necessary for describing speed & velocity?
<Best of luck>>>>>>>>>>>>>>>>>>>>>>

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### Replies to This Discussion

any one plz share the solution file

lets start discussion not wait for solution

Frendz..!!  Is it right to find average velovity???/

yup u right

But asignment me X direction n Y direction me distance given ha so isko kese calculate krna ha brro...?

A bat comes into contact with a cricket ball as shown in the
figure on right side, applying a force to the right. Marks 7
Which of the following statement is wrong?
a) The force of the bat on the ball is greater than the
force of the ball on the bat.
b) The force of the bat causes the ball to accelerate to
right.
c) During the time of contact, the ball applies a force
on the bat to the left.
d) During the time of contact, the bat will accelerate to
the left.
e) That experiences a greater acceleration than the bat
does.

is ka ans i think D hona chahiye bcz figure mein bat accelerate ker raha hai rihgt side say to baqi statement to is hisab say true hon gi just yeh hi wrong hai

Guys lets start discussion not wait for solution.

yes lets start discussion

Yess - i think you are right Nazir -

Option 'D' is vry close to the required answer :)

yes move to next question that is average velocity

option A nd D are wrong -

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