« previous next »

Author Question: which of the velocity component of projectile changes and other remain constant and why? (Read 1605 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?

If you use artificial sweeteners, such as cyclamates, your eyes may be more sensitive to light. Other factors that will make your eyes more sensitive to light include use of antibiotics, oral contraceptives, hypertension medications, diuretics, and antidiabetic medications.

Did you know?

There are more bacteria in your mouth than there are people in the world.

Did you know?

There are immediate benefits of chiropractic adjustments that are visible via magnetic resonance imaging (MRI). It shows that spinal manipulation therapy is effective in decreasing pain and increasing the gaps between the vertebrae, reducing pressure that leads to pain.

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

The human body's pharmacokinetics are quite varied. Our hair holds onto drugs longer than our urine, blood, or saliva. For example, alcohol can be detected in the hair for up to 90 days after it was consumed. The same is true for marijuana, cocaine, ecstasy, heroin, methamphetamine, and nicotine.

Physical assessment is one component of the nursing database Physical assessment is one component of the nursing database
Only 750 mountain gorillas remain in two tiny forests in East Africa. Only 750 mountain gorillas remain in two tiny forests in East Africa.
Deliberative nursing is a constant process of validating perceptions, thoughts, and feelings. Deliberative nursing is a constant process of validating perceptions, thoughts, and feelings.
Fall Velocity of Water Drops Fall Velocity of Water Drops
If you walk 5.0 m horizontally forward at a constant velocity carrying a 10 N object, the ... If you walk 5.0 m horizontally forward at a constant velocity carrying a 10 N object, the ...
Write equilibrium constant expressions for the following reactions in terms of concentration: Write equilibrium constant expressions for the following reactions in terms of concentration:
Video: Factors that influence muscle tension - Sarcomere length and force, understretched and overstretched

For a complete list of videos, visit our video library