Which statement is true according to newton's second law of motion?
an object accelerates in the direction opposite to the direction of the force applied.
an object accelerates in the direction perpendicular to the direction of the force applied.
an object accelerates in the same direction as that of the force applied.
an object undergoes no acceleration on the application of force.
an object’s acceleration is independent to the force applied.
plz & thx!

The correct answer to the question is C).An object accelerates in the same direction as that of the force applied.

EXPLANATION:

Before going to answer this question,  first we have to understand Newton's second laws of motion.

As per Newton's second laws of motion, the rate of change of momentum is directly proportional to the net external force and takes place along the direction of force.

Mathematically

Here, P is the momentum and P = mv.

                         ⇒ F =

                                 =        [m = constant]

                                 = ma.

Here, m  and v are the mass and velocity of a body .

'a' stands for the acceleration of a body which is the rate of change of velocity.

In vector form it can be written as .

Hence, it is obvious that the net external force is the product of mass with acceleration.

As mass is a scalar quantity, so we can say that force is simply the scalar multiple of mass with acceleration.

Hence, the direction of acceleration will be along the direction of force.

According to Newton's second law we have:

F = ma

Where,

F: Sum of forces or net force applied

m: total mass of the object

a: acceleration of the object

We observe that the force and the acceleration are proportional, being the constant of proportionality the mass of the object.

Therefore, the object accelerates in the same direction as the applied force.

An object accelerates in the same direction as that of the force applied.

air exerts forces on falling objects near earth’s surface.

explanation:

the term 'free falls' refer to object that are falling towards the earth, in a situation in which gravity is the only force acting on the object.

for an object in free fall, the acceleration is constant (g, the gravitational acceleration), and so the velocity of the object constantly increases.

for objects near earth's surface, there is always another force acting on the object: the resistance due to the air. this force is opposed to the direction of fall of the object, and it is proportional to the velocity of the object, so as the object falls down, this force increases up to a point when it balances the force of gravity, and the object continues its motion at constant velocity (called terminal velocity). since in this case gravity is not the only force acting on the object, we are not in a situation of free fall.

igneous rocks also form where plates converge. the subducting plate melts as it sinks into the crust of the earth, and the melt rises into the overriding plate forming volcanoes. metamorphic rocks are formed mainly in the lithosphere, wherever there is high pressure and high temperature. -woods