Find tension?
I asked this question about 40 mins ago, and I got the accelerations for both, but I cant get the tension force? I got 78.4 but the problem says that it isnt right, I dont know what it could be, I tried including g just incase but it said 186.2 was wrong too, any help?
An object with mass m1 = 3.00 kg, rests on a frictionless horizontal table and is connected to a cable that passes over a pulley and is then fastened to a hanging object with mass m2 = 8.0 kg, as shown in Figure P4.30. Find the acceleration of each object and the tension in the cable.
http://i165.photobucket.com/albums/u78/RLB31384/p4-30.gif
the acceleration is 7.127272727ms^2 for both
2007-03-28 03:23:35 · 2 answers · asked by hmmm 2 in Science & Mathematics ➔ Mathematics
You have the correct acceleration.
Let m1 be the mass on the table. The only force acting on it is the tension in the string.
The horizontal form of Newton's Law says T = m1*a
T = 3*7.13 = 21.4 m/s^2
2007-03-28 03:48:43 · answer #1 · answered by dudara 4 · 2⤊ 0⤋
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2016-11-24 19:09:45 · answer #2 · answered by ? 4 · 0⤊ 0⤋