A car, travelling from Kangar to Padang Besar, has met an accident near the dam. The driver has managed to get out of the car and closed his door before the car lands at the bottom of the dam on its wheels. The door is 1.5-m high and 0.72-m wide, and the top edge of the door is 15-m below the water surface. [Sebuah kereta yang menuju ke Padang Besar dari Kangar telah menemukan satu kemalangan berhampiran dengan empangan ini. Pemandu berjaya keluar dari kereta dan menutup pintu kereta sebelum kereta jatuh ke dasar empangan dengan tayar di bahagian bawah. Pintu kereta adalah 1.5-m tinggi dan 0.72-m lebar, dan hujung atas pintu adalah 15-m di bawah permukaan air.]

Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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A car, travelling from Kangar to Padang Besar, has met an accident near the dam.
The driver has managed to get out of the car and closed his door before the car
lands at the bottom of the dam on its wheels. The door is 1.5-m high and 0.72-m
wide, and the top edge of the door is 15-m below the water surface.
[Sebuah kereta yang menuju ke Padang Besar dari Kangar telah menemukan satu kemalangan
berhampiran dengan empangan ini. Pemandu berjaya keluar dari kereta dan menutup pintu
kereta sebelum kereta jatuh ke dasar empangan dengan tayar di bahagian bawah. Pintu kereta
adalah 1.5-m tinggi dan 0.72-m lebar, dan hujung atas pintu adalah 15-m di bawah permukaan
air.]
(i) Sketch the situation, showing all the parameters given.
[Lakarkan situasi ini, dengan menunjukkan kesemua parameter yang diberikan.]
(ii) From the sketch in Question 1(b)(i), determine the hydrostatic force on the
door and the location of the pressure centre.
[Daripada lakaran seperti pada Soalan 1(b)(i), tentukan daya hidrostatik pada pintu dan
lokasi pusat tekanan.]
Transcribed Image Text:A car, travelling from Kangar to Padang Besar, has met an accident near the dam. The driver has managed to get out of the car and closed his door before the car lands at the bottom of the dam on its wheels. The door is 1.5-m high and 0.72-m wide, and the top edge of the door is 15-m below the water surface. [Sebuah kereta yang menuju ke Padang Besar dari Kangar telah menemukan satu kemalangan berhampiran dengan empangan ini. Pemandu berjaya keluar dari kereta dan menutup pintu kereta sebelum kereta jatuh ke dasar empangan dengan tayar di bahagian bawah. Pintu kereta adalah 1.5-m tinggi dan 0.72-m lebar, dan hujung atas pintu adalah 15-m di bawah permukaan air.] (i) Sketch the situation, showing all the parameters given. [Lakarkan situasi ini, dengan menunjukkan kesemua parameter yang diberikan.] (ii) From the sketch in Question 1(b)(i), determine the hydrostatic force on the door and the location of the pressure centre. [Daripada lakaran seperti pada Soalan 1(b)(i), tentukan daya hidrostatik pada pintu dan lokasi pusat tekanan.]
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