Two Masses Are Connected by a String Which Passes Over

question 42

Multiple Choice

Two masses are connected by a string which passes over a pulley with negligible mass and friction.One mass hangs vertically and one mass slides on a frictionless horizontal surface.The horizontal surface has a coefficient of kinetic friction of 0.2.The vertically hanging mass is 4.00 kg and the mass on the horizontal surface is 6.00 kg.The acceleration of the 4.00 kg mass is

• A) 1.98 m/s².
• B) 2.74 m/s².
• C) 4.88 m/s².
• D) 6.73 m/s².
• E) 7.84 m/s².