The systems shown below are in equilibrium with m = 3.90 kg and ? = 25.0. If the

Question

The systems shown below are in equilibrium with m = 3.90 kg and ? = 25.0. If the spring scales are calibrated in newtons, what do they read? Ignore the masses of the pulleys and strings and assume the pulleys and the incline are frictionless.

scale in (a):  N

scale in (b):  N

scale in (c):  N

scale in (d):  N

The systems shown below are in equilibrium with m = 3.90 kg and ? = 25.0½. If the spring scales are calibrated in newtons, what do they read? Ignore the masses of the pulleys and strings and assume the pulleys and the incline are frictionless. scale in (a): N scale in (b): N scale in (c): N scale in (d): N

Explanation / Answer

a) mg = 38.22 N

b) mg = 38.22 N

c) 2mg = 76.4 N

d) mgsin (theta) = 16.51 N

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