Recent content by brickaney

Homework Statement An initially stationary 2.0kg object accelerates horizontally and uniformly to a speed of 10m/s in 3.0s. (a) In that 3.0s interval, how much work is done on the object by the force accelerating it? What is the instantaneous power due to that force (b) at the end of the...

Oh sorry the mass changed because I got the problem incorrect. The homework system I'm using changes the numbers every time you get an answer wrong.

Thanks for the help! I seem to be doing the problem incorrectly still. I have the values mA=32kg, mB=37kg, and mC=14kg. And time=0.230s. In the problem it says what is the tension when the assembly is released. I thought the weight of block A would effect the tension. I used the equation: T=...

Homework Statement Three boxes are connected by cords, one of which wraps over a pulley having negligible friction on it;s axle and negligible mass. The masses are mA=30kg, mB=36kg, and mC= 12kg. When the assemblyis released from rest (a) what is the tension in the cord connecting B and C, and...