Two blocks of masses 20 kg and 8.0 kg are connected together by a light string and rest on a frictionless level surface.Attached to the 8-kg mass is a second light string,which a person uses to pull both blocks horizontally.If the two-block system accelerates at 0.5 m/s²,what is the tension in the second string attached to the 8-kg mass? A)14 N B)6.0 N C)10 N D)4.0 N

Question

Quizplus · Accepted Answer

The total mass being accelerated is 28 kg (20 kg + 8 kg). Using F = ma, the force required is F = 28 kg * 0.5 m/s² = 14 N. This force is the tension in the second string.

Two Blocks of Masses 20 Kg and 8