Topics for Next Week

Hi Ladies & Gentlemen,

The photo was taken while I was visiting the University of Cambridge in UK a few years back. I was pretty slim at that time, did I?

OK guys, back to business. For next week, we still need to cover a topic on center of mass. Nevertheless, here are the rest of the topics for next week. Have a nice weekend!

10.0 Rotation of a Rigid Object About a Fixed Axis
10.1 Angular Position, Velocity and Acceleration
10.2 Rotational Kinematics: Rotational Motion with Constant Acceleration
10.3 Angular and Linear Quantities
10.4 Rotational Kinetic Energy
10.5 Calculation of Moments of Inertia
10.6 Torque
10.7 Relationship Between Torque and Angular Acceleration
10.8 Work, Power and Energy in Rotational Motion
10.9 Rolling Motion of a Rigid Object

The Coming Weeks

Hi everyone.

How was the test? I hope everyone did very well but I have yet finish marking your answer scripts. I hope to finish the marking over the weekends. Apart from that I guess you still owe me Quiz #2. As I have mentioned earlier, we will have couple of replacement classes in the coming weeks to cover the classes that we have missed during the closure of the campus because of the A(H1N1) virus. I anticipate that we will have more classes that need to be replaced due to holidays over the Merdeka Day on 31st. August and the Hari Raya breaks on 21st. & 22nd. September. The replacement classes will be held on Wednesdays 2-3 pm for Section 1 and Thursdays 9-10 am for Section 2.

To my Muslim students, I wish all of you a bless Ramadhan. As you all know, we will start observing the Ramadhan fasting month this Saturday. Insya Allah I hope everyone of you have geared yourself for the month. This is a month where we are supposed to cleanse ourself physically & spiritually. Please make a point to take your "sahur" before the dawn prayer and drink plenty of water so that you will not get exhausted during the day. There will also be one special night during this month known as "Lailatul-Qadr". Here is a short excerpt about the night: Lailatul-Qadr is the most virtuous night in the year. Almighty Allah says in the Qur'an: “We have indeed revealed this (Message) in the Night of Power: And what will explain to thee what the night of power is? The Night of Power is better than a thousand months.” (Al-Qadr: 1-3) The hidden treasures of Lailatul-Qadr and the great reward for those who strive hard in this blessed night was kept hidden except for some apparent signs. The Prophet (peace and blessings be upon him) urged Muslims to seek it in the last third part of Ramadan and namely in the odd number of nights. The fact that it is kept hidden is for a divine wisdom so that people strive in worshipping Allah as much as they can.

Of course it is also very challenging to stay awake during the classes especially the afternoon classes! All right folks, here are our topics for next week:

8.0 Potential Energy
8.1 Potential Energy of a System
8.2 The Isolated System-Conservation of Mechanical
Energy
8.3 Conservative Force
9.0 Linear Momentum and Collisions
9.1 Linear Momentum and Its Conservation
9.2 Impulse and Momentum
9.3 Collisions in One Dimension
9.4 Two-Dimensional Collisions
9.5 The Center of Mass

All the best!

Coming Back

Hi there!
I pray that everyone of you out there is safe and sound. It is devastated to learn that the number of casualties from the H1N1 virus keeps on increasing. Please take extra precautions and maintain hygienic practices at all time.

As you all know, the campus will be reopened next week and I hope to see all of you in high spirit and excellent health. We have missed one week of lessons and we need to do a lot of catch-ups in the coming weeks to meet the demands of our syllabus. Insya Allah, God Willing I'll do my best to accomodate the situation. In return, I hope all of you will strive hard to meet all the challenges and expectations.

As a reminder, our Test #1 is rescheduled to Tuesday, 18 August 2009. Quiz #2 is also due on the same date.

All the best and see you guys!

Reflection

Hi everyone,

This week is a busy week for me and perhaps everyone of us. Since Monday, there was the Anugerah Kualiti Presiden (AKP) visit by a panel of assessors that ended on Wednesday. On top of that, I have to postpone my Tuesday class for Section 2 to Thursday morning since I was involved with the SCOReD conference as one of the parallel sessions' chairperson. But suddenly Ms Sue called me saying that the Thursday morning class has to be cancelled because you guys are required to attend the opening ceremony of the Teaching & Learning Conference organized by IKAL.

Well, life got to go on. Next week I'm planning to finish all the topics that were planned for this week. Beside, we are going to have our first test on Tuesday, 11 August 2009 and I think we will do some quick revision during classes before the test. And please remember, your Quiz #2 is also due on the same day. As such, please spend some of your time over the weekend to reveiw all the topics that we have covered.

The H1N1 virus is spreading like bush fire and the number of casualties keep increasing day in and day out. Please take care of yourselves, avoid crowded place like shopping complexes, sports field, swimming pool etc. If you have symptom such as flu and high fever, please don't hesitate to go to the nearby clinic or hospital immediately. If necessary, please wear a mask to protect you and the others around you. Practice hygienic habits at all time.

See you guys next week, Insya Allah, God Willing.

Quiz #2

A spacecraft drifts through the space at a constant velocity. Suddenly a gas leak on one side of the spacecraft and resulted in a constant acceleration in a direction perpendicular to the initial velocity. The orientation of the spacecraft does not change so that the acceleration remains perpendicular to the original direction of the velocity.
a) Describe the subsequent motion of the spacecraft, its initial velocity, projection angle and acceleration.
b) Give an equivalent motion that is similar to the situation.