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The figure below shows a body of weight 50N placed on a surface which is inclined at an angle of #30^0# to the horizontal. The body experiences a maximum frictional force of 29N with the surface. Determine the force required to move the body, up the inclined with constant velocity.

Answer Text:
#Sin 30 = F/50#
F = 50 X sin 30 = 25N
F = 25N.
Total force parallel down the slope = 29 +25 =54N.