Two masses and are connected by a light string over a frictionless pulley

PHYSICS · Single correct · AP · Physics 1: Algebra-based · Force and Translational Dynamics · Force and Translational Dynamics

Problem

Two masses

m_1=2\,\text{kg}

and

m_2=4\,\text{kg}

are connected by a light string over a frictionless pulley. Calculate the magnitude of acceleration of the system (take

g=9.8\,\text{m s}^{-2}

). (a)

4.9\,\text{m s}^{-2}

(b)

9.8\,\text{m s}^{-2}

(c)

3.3\,\text{m s}^{-2}

(d)

2.45\,\text{m s}^{-2}