The diagram shows two forces acting perpendicularly on an object. The forces have magnitudes F1 = 8.2 N and F2 = 20.6 N. What is the net force acting on the object? a) magnitude 22 N; direction 68 degrees counterclockwise from
b) magnitude 22 N; direction 22° counterclockwise from
c) magnitude 25 N; direction 34° counterclockwise from
d) magnitude 25 N; direction 68° counterclockwise from

Option (b).

Explanation:

Two forces are acting perpendicularly on an object. We have, F₁ = 8.2 N and F₂ = 20.6 N

We need to find the net force acting on the object. When two forces are acting in perpendicular to each other, the net force on it is given by :

or

F = 22 N

Let is the angle. It can be given by :

or

So, the net force is 22 N and the direction is 22° counterclockwise from F₁. Hence, the correct option is (b).

e/c, where e is its total energy

it's when something is going so fast it makes a loud noise, breaking the sound barrier, for example: a jet makes a loud noise, not only cause of the jet but because they reached a point where they went so fast that you can year the noise from various parts, kinda like a police car, lets say the car was going   so fast that you hear the siren of the cop car right next to you, but the car is probably a mile a way, it's cos the siren was next to you a few seconds if you understand me