As Shown in the Figure,three Force Vectors Act on an Object.The

question 748

Multiple Choice

As shown in the figure,three force vectors act on an object.The magnitudes of the forces as shown in the figure are F₁ = 80.0 N,F₂ = 60.0 N,and F₃ = 40.0 N,where N is the standard SI unit of force.The resultant force acting on the object is given by

• A) 180 N at an angle 60.0° with respect to +x-axis.
• B) 60.0 N at an angle 90.0° with respect to +x-axis.
• C) 20.0 N at an angle 34.3° with respect to +x-axis.
• D) 35.5 N at an angle 34.3° with respect to +x-axis.
• E) 40.0 N at an angle 60.0° with respect to +x-axis.

---

Definitions:

Cyanobacteria

A phylum of bacteria that obtain their energy through photosynthesis and are known for their role in the Earth's early atmosphere's oxygenation.

Mosasaur

A group of extinct, large marine reptiles resembling large lizards that lived during the Late Cretaceous period and are known from fossil records.

Plesiosaur

Ancient marine reptiles with long necks and flippers, which lived during the time of the dinosaurs, in the Mesozoic Era.

Pterosaur

Extinct flying reptiles that existed during the age of dinosaurs, distinct for their winged structure formed by a membrane stretching from an elongated fourth finger to their legs.