The Speed of a 2

question 23

Multiple Choice

The speed of a 2.0-kg object changes from 30 m/s to 40 m/s during a 5.0-s time interval. During this same time interval, the velocity of the object changes its direction by 90°. What is the magnitude of the average total force acting on the object during this time interval?

• A) 30 N
• B) 20 N
• C) 40 N
• D) 50 N
• E) 6.0 N

---

Definitions:

Market Power

The ability of a firm or group of firms to manipulate or influence the price or supply of a good or service in the market.

High-Speed

Typically refers to technologies or transportation methods that operate significantly faster than traditional standards, often used in contexts like high-speed internet or high-speed trains.

Magnetically Powered

Devices or systems that are operated or driven by magnetic force or magnetic fields.

Decreasing Average Cost

A situation where the average cost of production decreases as the quantity of output increases, often due to economies of scale.