An Object with a Mass M = 250 G Is $\theta$

question 40

Multiple Choice

An object with a mass M = 250 g is at rest on a plane that makes an angle $\theta$ = 30º above the horizontal. The coefficient of kinetic friction between M and the plane is µ_k = 0.100. Mass M is attached by a string to another mass,
M = 200 g, which hangs freely. When mass m has fallen 30.0 cm, its speed is

• A) 83 cm/s
• B) 48 cm/s
• C) 160 cm/s
• D) 59 cm/s
• E) 72 cm/s

---

Definitions:

Beneficiaries

Individuals or groups that receive benefits or advantages from something, especially from a trust, insurance policy, or will.

Socially Optimal

A situation in which resources are allocated in the most efficient way from the society's point of view, maximizing total welfare.

Pollution

The contamination of the natural environment by harmful substances or energies, which can affect air, water, and land negatively and pose risks to human health and ecosystems.

Marginal Benefit

The boost in utility or enjoyment derived from the additional consumption of a unit of a good or service.