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Oswald Hills

Feb 20, 2025

Help Physics Question!!!!!!!?

In the figure here three ballot boxes are connected by cords, one of which wraps over a pulley having negligible friction on its axle and negligible mass. The masses are mA = 34 kg, mB = 41 kg, and mC = 12 kg. When the assembly is released from rest, (a) what is the tension in the cord connecting B and C, and (b) how far does A move in the first 0.250 s (assuming it does not reach the pulley)?Pulley-----------mA|||mB|mC

1 Answers

The net force on the system is 519.4 Newtons.(41 + 12) * 9.8 = 519.4The system accelerates at a rate of 5.970 m/s/s.519.4 / (34 + 41 + 12) = 5.970a) The tension in the cord connecting boxes B and C is 45.959 Newtons.12 * (9.8 - 5.970) = 45.959b) Box A moves a distance of 0.187 meters in the first 0.250 seconds.0.250^2 * 5.970 / 2 = 0.187... Show More

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