Explain Newton's 2nd Law of Motion in a simple way? please?

Question

Please put it in a simple way. Something that is easy to understand.

Answer 1

The heavier something is, the more force you have to use to get it to accelerate. It's proportional, so something 5 times heavier will accelerate 5 times slower with the same force, or will take 5 times the force to accelerate at the same rate. Something 5 times lighter will accelerate 5 times faster, or take 1/5th the force.

Answer 2

Newton's second law of motion states that the rate of change of momentum of a body is directly proportional to the applied force and takes place in the direction in which the force acts.

Momentum is the product of mass and velocity.

A change in momentum means that there is an initial velocity and a final velocity.

Rate of change of momentum means the value of the change in momentum per second.

It is practical that the more you apply force to a body, the more its velocity, that is the more it moves in the direction of the force.

when i speak of a change in momentum, i consider the same object, therefore , the mass is constant.

so, for that object to accelerate or experience an increase in velocity(or/and momentum as well), it means that the force applied was increased considerably to induce an increase in momentum and these other dependent quantities.

this is as simple as i can get, hope this works?

Answer 3

It states that when a force acts upon a body, acceleration is produced. This acceleration is directly proportional to the applied force which means that the greater the force applied, the greater the acceleration produced. This acceleration is inversely proportional to the mass of the body which means greater the mass, the lesser will be the acceleration.

greater force => more acceleration

smaller force => lesser acceleration

greater mass => lesser acceleration

lesser mass => greater acceleration

After solving the above statements mathematically, we conclude that:

F = m*a

REMEMBER: without force acceleration can never be produced!!

I hope my explanation will help....

Answer 4

The heavier the mass, the more force you need to apply for the object to move or stop.

Answer 5

From the first law:  If you apply a (net) force to an object of a particular mass, it will accelerate at a particular rate. (you need to push something to move it)

The second law gives us this:

The more massive an object is, the more (net) force you'll need to accelerate it at the same rate. (you need to push harder on something bigger to get it to speed up at the same rate)

or...

The less massive an object is, the less (net) force you'll need to accelerate it at the same rate.  (you don't have to push so hard on something smaller to get it to speed up at the same rate)

(that's the inverse proportionality of mass to acceleration bit)

For the same mass:

A greater (net) force will cause a greater rate of acceleration.

(if you push harder on something it will speed up quicker)

A lesser (net) force will cause a lesser rate of acceleration.

(if you don't push so hard, it will speed up slower)

(which is the proportinality of force to acceleration bit).

It's more concisely put in the equation:

    Force = Mass * Acceleration

{when I say (net) force, I mean the result of all the forces acting on the object.  there might be drag and acceleration which act in opposite directions.  The (net) force is the force which is left over.}

I do hope this hasn't muddied the waters.