Is Force Dependent On Velocity?

Is velocity dependent on mass?

Mass does not affect the speed of falling objects, assuming there is only gravity acting on it.

Both bullets will strike the ground at the same time.

The horizontal force applied does not affect the downward motion of the bullets — only gravity and friction (air resistance), which is the same for both bullets..

Does mass affect speed?

Mass doesn’t affect speed directly. It determines how quickly an object can change speed (accelerate) under the action of a given force. Lighter objects need less time to change speed by a given amount under a given force.

Why does a heavier object hit the ground first?

In other words, if two objects are the same size but one is heavier, the heavier one has greater density than the lighter object. Therefore, when both objects are dropped from the same height and at the same time, the heavier object should hit the ground before the lighter one.

What is force times velocity?

In calculus terms, power is the derivative of work with respect to time. … Since work is force times displacement (W=F*d), and velocity is displacement over time (v=d/t), power equals force times velocity: P = F*v. More power is seen when the system is both strong in force and fast in velocity.

Can you calculate force from velocity?

If it has an initial velocity u, and it accelerates, at a constant rate a, to a velocity v, in t seconds, then, by Newton’s Second Law, F = ma. But since a = (v-u)/t, F = m (v – u)/t or F = (mv – mu)/t. This is saying that the force is equal to the rate of change of momentum, where momentum = mass x velocity.

Why does mass not affect acceleration?

In each of these examples the acceleration was the result of gravity. … “What are the factors that affect the acceleration due to gravity?” Mass does not affect the acceleration due to gravity in any measurable way. The two quantities are independent of one another.

Does mass times velocity equal force?

The law defines a force to be equal to change in momentum (mass times velocity) per change in time. Newton also developed the calculus of mathematics, and the “changes” expressed in the second law are accurately defined in differential forms.

Is V final velocity?

Final velocity (v) of an object equals initial velocity (u) of that object plus acceleration (a) of the object times the elapsed time (t) from u to v.

Does Mass Affect force?

Weight of an object is a result of the Earth’s attraction downward. … Gravity affects weight, it does not affect mass. MASSES ALWAYS REMAIN THE SAME. Newton’s Second Law of Motion: Force = mass x acceleration The acceleration of an object is: a) directly proportional to the net force acting on the object.

How do you convert velocity to force?

This formula is stated as force = power / velocity. Their SI units are newtons for force, watts for power and m/s for velocity. Remember that the unit newton is equal to kg * m/s^2.

What is the relationship between force and velocity?

Force-velocity relationship The force that the muscles can produce decreases at a given pre-determined velocity (computer-controlled in vivo isokinetic/isovelocity modalities) as that velocity increases. The F-V relationship assumes that at a given velocity, the muscles are generating the maximum force possible.

Why does force equal mass times acceleration?

When you multiply a kilogram (mass unit) times a meter per second squared (acceleration unit) you get a kilogram-meter per second squared. So a unit for force is actually the kilogram-meter per second squared.

Does more mass mean more acceleration?

Increasing force tends to increase acceleration while increasing mass tends to decrease acceleration. Thus, the greater force on more massive objects is offset by the inverse influence of greater mass. Subsequently, all objects free fall at the same rate of acceleration, regardless of their mass.

What is force * velocity?

In the straightforward cases where a constant force moves an object at constant velocity, the power is just P = Fv. … In a more general case where the velocity is not in the same direction as the force, then the scalar product of force and velocity must be used.

Do heavier objects fall faster?

Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and brick dropped together. Air resistance causes the feather to fall more slowly.

What falls faster a feather or a rock?

Well, it’s because the air offers much greater resistance to the falling motion of the feather than it does to the brick. … Galileo discovered that objects that are more dense, or have more mass, fall at a faster rate than less dense objects, due to this air resistance. A feather and brick dropped together.

What is velocity and acceleration?

Here are the basic definitions of velocity and acceleration: velocity – the rate of displacement of a moving object over time. acceleration – the rate of velocity change over time.