 #1
LCSphysicist
 634
 153
 Homework Statement:
 Summarizing, it is a system with a pulley being pulled by a force F, with two masses hanging.
 Relevant Equations:

F = ma
Xm + XM = 2Xp
Yes, the pulley is accelerating, which if it is assumed that T = F/2 (i don't know why), we can know the acceleration is:Is the pulley accelerating?
What is the mass of the pulley?Yes, the pulley is accelerating, which if it is assumed that T = F/2 (i don't know why), we can know the acceleration is:
(M+m)F/4Mm  g
why do not you write the 2 Newton law for each bodyHomework Statement:: Summarizing, it is a system with a pulley being pulled by a force F, with two masses hanging.
Relevant Equations:: F = ma
Xm + XM = 2Xp
i don't know how to justify that the tensions in both side are equal to half of the force.
Unwrap the string from around the pulley and place it, together with the weights on an imaginary horizontal flat surface...., I can find everything that is requested, but there is a big problem, i don't know how to justify that the tensions in both side are equal to half of the force.
Is the pulley assumed to be massless? If so, what will Newton's 2nd law tell you?Yes, the pulley is accelerating, which if it is assumed that T = F/2 (i don't know why),