Question

An object with a mass of 2 kg accelerates 2 m/s when an unknown force is applied to it. What is the amount of force?

Answer 1

Do you know newton's second law?

Answer 2

Ya an object in motion will stat in motion and an object in rest will stay in rest but I dont really understand this can you help

Answer 3

would it just be 0 or would it be 2

Answer 4

umm... what you just said is actually newton's first law which is sometimes called the law of inertia.

Newton's second law states that the force of required to push an object is directly proportional to the mass and acceleration of that object. The equation is stated below:

\[F = ma\] , where F is the force, m is the mass, and a is the acceleration

As you can see from the equation, as you double the mass, you also double the force. As you double the acceleration, you also double the force.

Hint: to solve your problem, use newton's second law

Answer 5

So just mass times acceleration?

Answer 6

F = ma

Answer 7

yes

Answer 8

Okay thank you so much! And can you explain to me what inertia is?

Answer 9

And what velocity is hahah sorry i am not very smart...

Answer 10

inertia is a property of matter that tells us the tendency of how an object at rest will remain at rest or how an object in motion will remain in motion unless acted upon by an external force. For example, picture yourself in a car. As the car moves at a speed, your body will move at the same speed of the car. However, when the car abruptly stops, your body sways forward because of your bodies inertia.



Velocity on the other hand is the same as speed. However, speed only has a magnitude and no direction. For example, 15 km/h is a speed because it only has a magnitude. Velocity has both a magnitude and direction. For example, 15 km/h North is a velocity because it has both a magnitude and speed.

Answer 11

OMG you are literally my lifesaver right now..... OMG thank you so much I can't!

Answer 12

glad to help :)