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A child pushes a toy box 4.0m along the fllor with a force of 6.00N directed downward at an angle of 37.0 degrees to the horizo...Asked by stefy
A child pushes a toy box 4.0m along the floor with the force of 6.00 N directed downward at an angle 37 degrees to the horizontal.
a. How much work does the child do?"
b. Would you expect more or less work to be done if the child pulled upward at the same angle?
Work is force*distance *CosTheta where Theta is the angle between the distance direction and the force vector. Later on, you will use something called the DOT product, which is a vector function. Work = force dot distance.
Work= 6*4*Cos37
Ignoring friction, there is no difference in up or down. Including friction, pushing downward increases the friction force...think this out.
a. How much work does the child do?"
b. Would you expect more or less work to be done if the child pulled upward at the same angle?
Work is force*distance *CosTheta where Theta is the angle between the distance direction and the force vector. Later on, you will use something called the DOT product, which is a vector function. Work = force dot distance.
Work= 6*4*Cos37
Ignoring friction, there is no difference in up or down. Including friction, pushing downward increases the friction force...think this out.
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