Box on table has friction coeff. of friction = uk Fnet = ma
make clockwise + Mg - ukmg= (m + M)a
Tension force in rope? Rule - One rope, make clockwise + Fnet = ma
T - ukmg = ma T = ma + umg Ex) T in terms of M Draw freebody diagram for M
Tf = Mg - Ma
Massless, frictionless pulley and ramp Masses move together with one accel. make CCW + Fnet = ma mg - Mgsinq = (m + M)a
Hanging weight force
When does a = 0?
Msinq = m
When does box move down ramp?
When mg greater than MsinӨ>m
©Tony Mangiacapre., All Rights Reserved
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