Space Find the Speed $s ( t )$ Of the Object

question 11

Multiple Choice

$\text { The position vector } \mathbf { r } ( t ) = 8 t \mathbf { i } + + 4 t \mathbf { j } + 5 t \mathbf { k } \text { describes the path of an object moving in }$ space. Find the speed $s ( t )$ of the object.

• A) \(s ( t ) = 1 / 73\)
• B) \(s ( t ) = 105\)
• C) \(s ( t ) = 1 / 105\)
• D) \(s ( t ) = 1 / 85\)
• E) \(s ( t ) = 17\)

---

Definitions:

Central Persuasion

A method of influencing that relies on direct, logical, and thought-provoking messages aiming at the central route of the cognitive process.

Peripheral Route Persuasion

A method of persuasion that influences individuals indirectly, by focusing on cues other than the direct message, such as the attractiveness or credibility of the source.

Central Route Persuasion

Central route persuasion is a method of persuasion that involves deeply processing the content of the message, leading to a lasting attitude change. It requires the audience's active and effortful engagement with the message.

Logical Arguments

Reasoning where premises are systematically connected to arrive at a justified conclusion.