Show each equation that you will solve in symbolic form, with variable names onl

Question

Show each equation that you will solve in symbolic form, with variable names only. Show the samp equation, still in symbolic form, solved for the variable of interest. Show the equation with numbers substituted into the variables. Show the numerical result with units. m-toog horizontal beam with a mass of 1.50 kg is fixed to the wall by a pin. There's a 250 g mass hanging at the free end of the beam. Calculate the torque exerted by pin to keep the beam horizontal. Show all work and units! (Answer. 11.8 N-m)

Explanation / Answer

Data: Length of the beam, L = 1.2 m Mass of the beam, m1 = 1.5 kg Mass of the load, m2 = 250 g                                      = 0.250 kg Solution: Torque, = [ m1 * g * (L/2) ] + ( m2 * g * L )                  = [ 1.5 * 9.8 * (1.2/2) ] + ( 0.250 * 9.8 * 1.2)                  = 11.8 N.m Ans: Torque, = 11.8 N.m

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