- #1
goldfish9776
- 310
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1.
The block of 50kg with m =30kg is in the verge of moving down the slope where theta = 20degree, determine the new value of m when the mass of block is increased more to 20kg .
I have done in this way , is it okay ?
(50-30)(9.81) = Fs
196.2 = Us (50 x 9.81 cos20)
Us= 0.43
(70-m)(9.81) = 0.43(70 x 9.81 cos20 )
m = 41.7kg
[/B]
The block of 50kg with m =30kg is in the verge of moving down the slope where theta = 20degree, determine the new value of m when the mass of block is increased more to 20kg .
Homework Equations
The Attempt at a Solution
I have done in this way , is it okay ?
(50-30)(9.81) = Fs
196.2 = Us (50 x 9.81 cos20)
Us= 0.43
(70-m)(9.81) = 0.43(70 x 9.81 cos20 )
m = 41.7kg
[/B]