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three identical blocks connected by ideal strings are being pulled along a horizontal frictionless surface by...

three identical blocks connected by ideal strings are being pulled along a horizontal frictionless surface by a hrizontal force F. the magnitude of the tension in the string between blocks B and C is T=3.00 N. assume that each block had mass m=0.400kg



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Expert Solution

Assume the blocks are connected from left to right in the order A-B-C, and that the force F is pulling block C towards the right. The blocks are moving at equal acceleration "a".

At C,
F - T_BC = ma

At B,
T_BC - T_AB = ma

At A,
T_AB = ma

From these,
F = 3*T_BC/2
F = 3*3/2
F = 4.5 N

Also,
T_AB = T_BC/2
T_AB = 3/2
T_AB = 1.5 N

genius_generous answered 2 years ago
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