Three Forces $\overrightarrow { \mathbf { F } }$ ₁ $\overrightarrow { \mathbf { F } }$

question 78

Multiple Choice

Three forces, $\overrightarrow { \mathbf { F } }$ ₁, $\overrightarrow { \mathbf { F } }$ ₂, and $\overrightarrow { \mathbf { F } }$ ₃, each of magnitude 70 N, all act on an object as shown in the figure. The magnitude of the resultant force acting on the object is

• A) 35 N.
• B) 70 N.
• C) 140 N.
• D) 210 N.
• E) 0 N.

---

Definitions:

Edward Thorndike

An American psychologist who developed the theory of connectionism, emphasizing the role of practice and reward in learning.

Highly Successful

Describes individuals or entities that have achieved significant accomplishments or recognition in their respective fields or activities.

Grit

A quality that involves persistence, determination, and resilience in the pursuit of long-term goals despite challenges or failures.

Motivation

A need or desire that energizes and directs behavior.