« previous next »

Author Question: which of the velocity component of projectile changes and other remain constant and why? (Read 922 times)

coco

  • Hero Member
  • *****
  • Posts: 739
on: Jun 23, 2013
which of the velocity component of projectile changes and other remain constant and why.


Millan

  • Sr. Member
  • ****
  • Posts: 368
Reply #1 on: Jun 23, 2013
Vertical component changes. Horizontal component doesn't.
The motion of object in the vertical direction is determined by act of gravity. So it has either acceleration or deceleration and hence velocity is continuously changing.
In case of horizontal component, there is no opposition to motion (neglecting air resistance) and hence there is nothing to impede the motion and hence it is constant.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question

TI

  • Sr. Member
  • ****
  • Posts: 434
Reply #2 on: Jun 23, 2013
vertical velocity component of projectile changes as it is acted upon by gravity and horizontal component remains constant


camila

  • Hero Member
  • *****
  • Posts: 705
Reply #3 on: Jun 23, 2013
Consider the 2D case - you can split the projectile's velocity into 2 components  .. a 'vertical' (up & down) part and a horizontal (forwards) part ...

The 'up/down' (vertical) part will be effected by GRAVITY (which will pull it downwards until it hits the ground) .. whilst the 'forwards' (horizontal) part is only effected by air resistance (which is often ignored to make things simple).


« previous next »
 

Did you know?

In 2012, nearly 24 milliion Americans, aged 12 and older, had abused an illicit drug, according to the National Institute on Drug Abuse (NIDA).

Did you know?

Asthma attacks and symptoms usually get started by specific triggers (such as viruses, allergies, gases, and air particles). You should talk to your doctor about these triggers and find ways to avoid or get rid of them.

Did you know?

The strongest synthetic topical retinoid drug available, tazarotene, is used to treat sun-damaged skin, acne, and psoriasis.

Did you know?

Vaccines cause herd immunity. If the majority of people in a community have been vaccinated against a disease, an unvaccinated person is less likely to get the disease since others are less likely to become sick from it and spread the disease.

Did you know?

The Romans did not use numerals to indicate fractions but instead used words to indicate parts of a whole.

Native American casinos remain a topic of both controversy and envy. Shown here is Corey Two Crow as ... Native American casinos remain a topic of both controversy and envy. Shown here is Corey Two Crow as ...
Teaching women about the safety of drug use during pregnancy is an essential component of nursing ... Teaching women about the safety of drug use during pregnancy is an essential component of nursing ...
If y = 0.02 sin (30x - 400t) (SI units), the velocity of the wave is If y = 0.02 sin (30x - 400t) (SI units), the velocity of the wave is
If y = 0.02 sin (30x - 400t) (SI units), the velocity of the wave is If y = 0.02 sin (30x - 400t) (SI units), the velocity of the wave is
A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30 below the horizontal ... A 1.5-kg playground ball is moving with a velocity of 3.0 m/s directed 30 below the horizontal ...
Americium-243 has a decay constant of 9.39 × 10-5 years-1. How long will it take Americium-243 has a decay constant of 9.39 × 10-5 years-1. How long will it take
Video: How Hemoglobin Picks Up and Delivers Oxygen

For a complete list of videos, visit our video library