A block of mass 2.42 kg lies on a frictionless horizontal surface. The block is connected by a cord passing over a pulley to another block of mass 4....

A block of mass 2.42 kg lies on a frictionlesshorizontal surface. The block is connectedby a cord passing over a pulley to anotherblock of mass 4.75 kg which hangs in the air,as shown on the following picture. Assumethe cord to be light (massless and weightless)and unstretchable and the pulley to have nofriction and no rotational inertia.The acceleration of gravity is 9.8 m/s2 .Calculate the acceleration of the first block.Answer in units of m/s2.