The systems shown below are in equilibrium (with m = 3.50 kg and θ = 32.0°). If the spring scales ar

Physics
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The systems shown below are in equilibrium (with m = 3.50 kg and θ = 32.0°). 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 .

Jun 5th, 2015

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Jun 5th, 2015
Jun 5th, 2015
Jun 5th, 2015

a) 0N

b) Weight=mass*gravity

    weight= 3.5kg *10= 35 N

c) (3.50+3.50)kg*10=7*10=70 N

d) sin θ=10/N

    sin 32.0°=10/N

N=10/sin 32.0°

N=18.87 N

I hope that will help. Remember gravity is assumed to be 9.8N~10N

Jun 5th, 2015

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