(a) State the ideal mechanical assumptions made for a laboratory pulley–string…
PHYSICS · Subjective · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics
Problem
(a) State the ideal mechanical assumptions made for a laboratory pulley–string arrangement used to study motion of connected bodies.
(b) Two masses m1 and m2 are joined by a light, inextensible string passing over a smooth, friction-less pulley. If the system is released from rest, show that the magnitude of acceleration of the system is
a=m1+m2(m2−m1)g
and obtain an expression for the tension T in the string.
(c) Using your result from part (b), calculate a and T when m1=3kg and m2=5kg, taking g=9.8ms−2.