Question

A 127.0 N carton is pulled up a frictionless baggage ramp inclined at 27.0 ∘ above the horizontal by a rope exerting a 75.2 N pull parallel to the ramp's surface. The carton travels 6.05 m along the surface of the ramp. b) Calculate the work done on the carton by the gravity. c) Calculate the work done on the carton by the normal force of the ramp. d) What is the net work done on the carton? e) Suppose that the rope is angled at 49.0 ∘ above the horizontal, instead of being parallel to the ramp's surface. How much work does the rope do on the carton in this case?

          A 127.0 N carton is pulled up a frictionless
baggage ramp inclined at 27.0 ∘ above the horizontal
by a rope exerting a 75.2 N pull parallel to the
ramp's surface. The carton travels 6.05 m along the
surface of the ramp.
b) Calculate the work done on the carton by the
gravity.
c) Calculate the work done on the carton by the normal
force of the ramp.
d) What is the net work done on the carton?
e) Suppose that the rope is angled
at 49.0 ∘ above the horizontal, instead of being
parallel to the ramp's surface. How much work does the rope do on
the carton in this case?

Added by Debbie A.

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