March 28, 2017

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Posts by tsubasa

Total # Posts: 3

physics, only smart people answer
Two blocks are connected by a lightweight, flexible cord that passes over a frictionless pulley. If m1 = 3.4 kg and m2 = 9.0 kg, and block 2 is initially at rest 140 cm above the floor, how long does it take block 2 to reach the floor?
February 12, 2013

A block of mass m1 = 3.2 kg rests on a frictionless horizontal surface. A second block of mass m2 = 1.9 kg hangs from an ideal cord of negligible mass that runs over an ideal pulley and then is connected to the first block. The blocks are released from rest a) Find the ...
February 12, 2013

A crate of potatoes of mass 19.0 kg is on a ramp with angle of incline 30° to the horizontal. The coefficients of friction are ìs = 0.68 and ìk = 0.36. Find the frictional force (magnitude and direction) on the crate if the crate is sliding up the ramp ...
February 12, 2013

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