What is the only force that acts on a projectile neglecting air resistance?

In the absence of air resistance the only force acting on a projectile in flight is the weight of the object. Weight by definition acts vertically downwards, hence no horizontal component.

Is air resistance is negligible in projectile motion?

Projectile motion is the motion of an object thrown or projected into the air, subject to only the acceleration of gravity. (This choice of axes is the most sensible, because acceleration due to gravity is vertical—thus, there will be no acceleration along the horizontal axis when air resistance is negligible.)

What happens if there is air resistance in projectile motion?

is the terminal velocity: i.e., the velocity at which the drag force balances the gravitational force (for a projectile falling vertically downward). …

What does it mean for air resistance to be negligible?

If an object is thrown straight up and air resistance is negligible, then its speed when it returns to the starting point is the same as when it was released.

When no air resistance acts on a projectile Its acceleration is?

Neglecting air resistance, what is its vertical acceleration? Its horizontal acceleration? Its vertical acceleration is g because the force of gravity is downward. Its horizontal acceleration is zero because no horizontal force acts on it.

Is air resistance actually negligible?

Air resistance is insignificant for heavy objects precisely because it doesn’t depend on the mass. Specifically, the change in motion due to air resistance gets bigger as the mass gets smaller.

Which of the following is a constant in projectile motion?

Answer: Horizontal components of the projectile motion is constant.

What does negligible friction mean?

Since friction always opposes motion between surfaces, the acceleration is smaller when there is friction than when there is none. In fact, it is a general result that if friction on an incline is negligible, then the acceleration down the incline is a = g sin θ, regardless of mass.

What does negligible mass mean in physics?

It really means photons, particles with no rest mass. Everything else might become questionable under some circumstances. E.g. neutrinos are very close to being massless, so they must move very close to geodesics, but in some rare cases pretty major deviations may happen.

What is vertical motion of a projectile?

Projectiles – vertical motion. The vertical motion of a projectile is controlled by the force of gravity. This means that there is an unbalanced force acting on the ball and so the ball will accelerate downwards. This acceleration is. 9 ⋅ 8 m s − 2 (the gravitational field strength on Earth).

When no air resistance acts on a projectile its vertical acceleration is?

How does air resistance affect the motion of projectile motion?

In our study of projectile motion, we assumed that air-resistance effects are negli-gibly small. But in fact air resistance (often called air drag,or simply drag) has amajor effect on the motion of many objects, including tennis balls, bicycle riders,and airplanes. In Section 5.3 we considered how a fluid resistance force affected

What is the vertical component of acceleration in projectile motion?

While an object is in projectile motion (with upward being positive) with no air resistance, The horizontal component of its velocity remains constant and the vertical component of its acceleration is equal to -g Alice and Tom dive from an overhang into the lake below.

What is the rate of air resistance acting on the cyclist?

A cyclist accelerates in a straight line. At one instant, when the cyclist is exerting a forward force of 40 N, the air resistance acting on the cyclist is 10 N. What is the rate of change of momentum of the cyclist at this instant?

What happens when an object is dropped from an airplane?

An object is dropped from an airplane flying at a constant speed in a straight line at a constant altitude. If there is no air resistance, the falling object will (as seen from the ground) Remain directly under the airplane The motion diagram shows an object moving along a curved path at constant speed.