A block A of mass 7 kg is placed on a frictionless table. A thread tied to it passes over a frictionless pulley and carries a body B of mass 3 kg at the other end. The acceleration (in m/s2) of the system is (given g = 10 ms-2)

Question

A block A of mass 7 kg is placed on a frictionless table. A thread tied to it passes over a frictionless pulley and carries a body B of mass 3 kg at the other end. <img class="img-fluid question-image" alt="image" src="https://cdn.tardigrade.in/img/question/physics/e60bd9629195752c4129a57c4e17786d-.png" /> The acceleration (in m/s2) of the system is (given g = 10 ms-2) (A)  (B)  (C)  (D)

Tardigrade Admin · Accepted Answer

a =(m2/m1 +m2) g = (3/7 +3)× 10 =3 m/s2

Q. A block $A$ of mass $7 k g$ is placed on a frictionless table. A thread tied to it passes over a frictionless pulley and carries a body B of mass $3 k g$ at the other end.

The acceleration (in m/s $^{2}$ ) of the system is (given $g = 10$ ms $^{- 2}$ )

$a = \frac{m _{2}}{m _{1} + m _{2}} g = \frac{3}{7 + 3} \times 10 = 3$ m/s $^{2}$

Q. A block A of mass 7kg is placed on a frictionless table. A thread tied to it passes over a frictionless pulley and carries a body B of mass 3kg at the other end. The acceleration (in m/s2) of the system is (given g=10 ms−2)

a=m1​+m2​m2​​g=7+33​×10=3 m/s2

Q. A block $A$ of mass $7 k g$ is placed on a frictionless table. A thread tied to it passes over a frictionless pulley and carries a body B of mass $3 k g$ at the other end.

The acceleration (in m/s $^{2}$ ) of the system is (given $g = 10$ ms $^{- 2}$ )

$a = \frac{m _{2}}{m _{1} + m _{2}} g = \frac{3}{7 + 3} \times 10 = 3$ m/s $^{2}$