申論題

10.In Figure (5), a wheel of radius 0.25 m is mounted on a frictionless horizontal axle. A massless cord is wrapped around the wheel and attached to a 2.0 kg box that slides on a frictionless surface inclined at angle θ = 37° with the horizontal. The box accelerates down the surface at 2.5 m/s² . What is the rotational inertia of the wheel about the axle? (g = 10 m/s² )