Two Masses Are Connected by a String Which Passes Over

question 122

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 30.0 degree frictionless incline. The vertically hanging mass is 6.00 kg and the mass on the incline is 4.00 kg. The magnitude of the acceleration of the 4.00 kg mass is

• A) 1.98 m/s².
• B) 3.92 m/s².
• C) 5.75 m/s².
• D) 6.86 m/s².
• E) 7.84 m/s².