A Constant Force of 45 N Directed at Angle $\theta$ To the Horizontal Pulls a Crate of Weight 100 N

question 74

Multiple Choice

A constant force of 45 N directed at angle $\theta$ to the horizontal pulls a crate of weight 100 N from one end of a room to another a distance of 4.0 m. Given that the vertical component of the pulling force is 12 N, calculate the work done by the force in moving the crate.

• A) 4.1 x 10² J
• B) 4.8 x 10¹ J
• C) 3.9 x 10² N/m
• D) 1.7 x 10² J
• E) 3.9 x 10³ J

---

Definitions:

Ammonification

Ammonium-producing process of decomposition.

Nitrification

Conversion of ammonium to nitrate.

Trophic Category

A classification describing the position of organisms within a food chain, based on their feeding relationships and energy transfer.

Detritivore

An organism that feeds on dead organic matter, largely contributing to decomposition and nutrient recycling in ecosystems.