-
A system consists of three masses m1, m2 and m3 connected by a string passing over a pulley P. The mass m1 hangs freely and m2 and m3 are on a rough horizontal table (the coefficient of friction = µ). The pulley is frictionless and of negligible mass. The downward acceleration of mass m1 is : (Assume m1 = m2 = m3 = m)
-
-
g(1 - gμ) g -
2gμ 3 -
g(1 - 2μ) 3 -
g(1 - 2μ) 2
-
Correct Option: C
| Acceleration = | ||
| Totla mass of system |
| = | = | (1 - 2μ) | ||
| m1 + m2 + m3 | 3 |
(∵ m1 = m2 = m3 = m given)
