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bbcbbc

2007-11-16 02:35 AM

ALPhysics-Dynamics

When given a slight push, a toy car remains stationary on a plane inclined at 20度 to the horizontal.
If the mass of the car is 0.5kg and limited friction is 1.71N, find the force parallel to the inclined plane for pulling the car up the plane with constant velocity.

:8-791:點計

~豬仔~	2007-11-16 02:55 AM

你F.幾

bbcbbc

2007-11-16 03:01 AM

F.6
又如何?

~豬仔~	2007-11-16 03:02 AM

唔識

天堂	2007-11-16 09:19 AM

咩黎嫁= ="

bbcbbc

2007-11-16 09:44 AM

[quote]原帖由 [i]天堂[/i] 於 2007-11-16 05:19 PM 發表
咩黎嫁= =" [/quote]
Physics物理
-Dynamics
題目
:8-791:

[[i] 本帖最後由 bbcbbc 於 2007-11-16 05:48 PM 編輯 [/i]]

sunnycc

2007-11-18 02:39 AM

mechanic= ="

bbcbbc

2007-11-18 05:36 AM

:8-110:無人識:8-105:

kistar

2007-12-18 08:50 AM

係咪咁？
(*當degree)
Pulling Force required=mgsin20*+1.71
=0.5x10xsin20*+1.71
=[u]3.42N[/u] (corr. to 3 sig. fig.)

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