Physics, 09.11.2019 01:31, microwave13016
A70 kg box on a horizontal surface, is pulled by a force of 400 n at 30 degree with the respect to the horizontal. the coefficient of friction between the box and the surface is 0.50. assume the motion is horizontal. (a) draw a free body diagram of the system (b) find the normal force (c) find the horizontal force.
Answers: 3
is angle of inclination
for g, 400 N for F and 
for 
where 
is the net force on horizontal axis, Fr is frictional force which is given by
and 486.7 for N we obtain
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A70 kg box on a horizontal surface, is pulled by a force of 400 n at 30 degree with the respect to t...
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