A 350-G Air Track Cart on a Horizontal Air Track

Multiple Choice

A 350-g air track cart on a horizontal air track is attached to a string that goes over a pulley with a moment of inertia of 6.00 × 10^-6 kg∙m² and a radius of 1.35 cm. The string is pulled vertically downward by a force of 2.50 N. What is the acceleration of the cart?

A) 7.14 m/s²
B) 6.53 m/s²
C) 5.27 m/s²
D) 4.98 m/s²
E) 3.27 m/s²