1986 B1

Three blocks of masses 1.0, 2.0, and 4.0 kilograms are connected by massless strings, one of which passes over a frictionless pulley of negligible mass, as shown above. Calculate each of the following.

(a) The acceleration of the 4 kilogram block.

(b) The tension in the string supporting the 4 kilogram block.

(c) The tension in the string connected to the 1 kilogram block.