Question

茹 準國二生

有人知道這怎麼算嗎 ？
畫黑線的那裡 （Cos25度）

The solution requires that we determine the component of the f
because the component of the force that was pushing down on
Fparallel (Force) (cos 25°) = (125 N)(0.906) = 113 N
W =
Fparalleld = (113 N)(56 m) = 630 J
Getting a piano into a truck isn't easy, so we often use a ramp to
the distance we have to apply the force is greater. So in a way,
work done remains the same. Play around with the Ramp and Pi

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