**Unformatted text preview: **1 : :
--SI units are kg : : :
to change
-a vector quantity 2 where:
is the net force
m is the mass of the object
is the acceleration of the object 2
2
2 2 Normal Force N -always a pulling force (so direction of force on an object is 3 ex: 4.57 from textbook
o The mover pulls on a rope attached to the box to pull it up the
incline (figure below). If the rope makes an angle of 40.0 o with
F
to exert to move the box up the ramp? F N
F 15 mg (= weight) Solving the horizontal equation for N and then substituting into
the vertical equation gives: and then plugging in numbers for the trig functions and m and g
gives us:
F = 56.029858N --> 56.0N
4 ...

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- Fall '18
- Eichelberger
- Physics, pH, Acceleration, Force, Mass, Normal Force, vector quantity, 15 mg, horizontal equation