匿名使用者
匿名使用者 發問時間: 科學及數學工程學 · 4 星期前

Polar co-ordinate?

Q1. The hydraulic jack is moving with a constant velocity as shown. The end of the jack is a pin P which slides within the slot of bar OA which is hinged at O. What is the velocity (m/s) of P relative to O in the direction OA?

Q2. What is the angle velocity (rad/s) of OA at this instant?

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