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Two blocks m1 = 5 gm and m2 = 10 gm are hung vertically over a light frictionless pulley as shown here. What is the acceleration of the masses when they are left free?
(where g is acceleration due to gravity)
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- g/3
- g/2
- g
- g/5
Correct Option: A
Let T be the tension in the string.
∴ 10g – T = 10a ....(i)
T – 5g = 5a ....(ii)
Adding (i) and (ii),
| 5g = 15a ⇒ a - | m/s² | |
| 3 |
