Question

Two blocks m, = 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?
mm
Im
(a) 8/3
(6) 8/2
(c) g
(d) g/5​

Answer 1

Let T be the tension in the string.

∴ 10g – T = 10a ....(i)

T – 5g = 5a ....(ii)

Adding (i) and (ii), 

5g = 15a ⇒ a -gm/s²3

OPTION A is the correct answer........

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