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1. 排列方式

1. ### physics(mechanics)

a) Using the relation v = Rω, we have v = 0.11ω b) During sliding, the constant friction f continuously acts on the ball at the point of contact between ...

2. ### phy (mechanics)

Let the mass of block Y be m kg and with reference to the diagram below: 圖片參考：http://i388.photobucket.com/albums/z467/robert1973/Dec10/Crazymech1.jp ...

3. ### phy (mechanics)

...k.e. of the block = 0.5 x 2 x 0.52 = 0.25 J So by conservation of mechanical energy, the max. e.p.e. stored in the spring is 0.25 = 0.1 = 0.15...

4. ### phy(mechanics)

For (1), since the man is climbing up, the moment about Q contributed by his weight is increasing since the perp. distance is increasing too. Therefore the ...

5. ### phy (mechanics)

Since the contact between P and Q is smooth, no friction can bring P into motion and hence the acc. of P will be zero. Therefore, all force component of F ...

6. ### physics mechanic

(a) In vertical motion part, its time of flight can be found as: s = ut + at2/2 with s = 200, u = 0 and a = 10 t = 6.32 s So, in horizontal direction, ...

7. ### PHY mechanics

By Newton's Second Law of Motion, the acceleration of the trucks after the collision is given by : F = (M + m)(a) , where (M + m) and F are total mass ...

8. ### phy (mechanics)

Let the displacement from the point B be x. Since the object is slightly displaced, the displacement x has its value approximately equal to the ...

9. ### AL Mechanics

The spring's compression will be maximum at the moment when the blocks have the same velocity. By conservation of linear momentum, the common velocity ...

10. ### physics - mechanic

Let mass of the plank = M and the position of the men's shoulders' positions be X and Y with XA = 0.3 m and YB = 0.7 m, then: XY = 2 m XO = 1.2 m ...