|Jun17-10, 07:30 PM||#1|
Solving for applied force to push an object up a ramp.
A box, mass 100kg, must be pushed onto a table using an inclined plane 1.5 m high. The plane is 4 m long. If the pleane offers a frictional force equivalent to 10% the weight of the box, what force must be applied to move the box?
What I tried:
sin^-1(4/1.5) = 22.6
100 * 9.8 = 980 N (fgrav)
That's where I get stuck. I'm not sure if I'm even doing it right (However, I know the angle is).
Please help. My exam is tomorrow.
|Jun17-10, 10:06 PM||#2|
Use summation F(x)=0
friction and mg sin (theta) direction is downward . Applied force dirction is upward.Yes your friction is 98 N. No need to consider Y direction here.
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