1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Kitty [74]
2 years ago
11

The acceleration vector of a particle in projectile motion ________.

Physics
1 answer:
Alex73 [517]2 years ago
4 0

Answer:

Points downward, and its magnitude is 9.8 m/s^2

Explanation:

The motion of a projectile consists of two independent motions:

- A uniform horizontal motion, with constant velocity and zero acceleration. In fact, there are no forces acting on the projectile along the horizontal direction (if we neglect air resistance), so the acceleration along this direction is zero.

- A vertical motion, with constant acceleration g = 9.8 m/s^2 towards the ground (downward), due to the presence of gravity wich "pulls" the projectile downward.

The total acceleration of the projectile is given by the resultant of the horizontal and vertical components of the acceleration. But we said that the horizontal component is zero, therefore the total acceleration corresponds just to its vertical component, therefore it is a vector with magnitude 9.8 m/s^2 which points downward.

You might be interested in
To give an idea of sensitivity of the platypus's electric sense, how far from a 80nC n C point charge does the field have this m
SVETLANKA909090 [29]

The question is incomplete. The complete question is :

A platypus foraging for prey can detect an electric field as small as 0.002 N/C.

-To give an idea of sensitivity of the platypus's electric sense, how far from a +80nC point charge does the field have this magnitude?

Solution :

Given electric field,  E = 0.002 N/C

Charge, Q = + 80 nC

$\therefore E = \frac{kQ}{R^2} $

or $R^2=\frac{kQ}{E}$

    $R^2=\frac{9\times 10^9 \times 80 \times 10^{-9}}{0.002}$

   R = 600 m

This is the distance of the charge from the point of observations.

5 0
2 years ago
Where are the life forms of the biosphere located
bulgar [2K]
<span>The life forms of the biosphere are located within Earth's surface.</span>
7 0
3 years ago
An electronic line judge camera captures the impact of a 57.0-g tennis ball traveling at 32.2 m/s with the side line of a tennis
mote1985 [20]

Answer:

average acceleration is 1.365 × 10^{4} m/s²

Explanation:

given data

initila speed  u = -32.2 m/s

final speed v = 21.6 m/s

time taken t = 0.00394 s

solution

we get here average acceleration that will be express as

v = u + at    ..........................1

put here value and we get

21.6 = -32.2 + a × 0.00394

solve it we get

a = 1.365 × 10^{4} m/s²

so average acceleration is 1.365 × 10^{4} m/s²

3 0
3 years ago
What is force ? <br>question for spammers hehe..​
love history [14]

Answer:

Force: Strength or energy as an attribute of physical action or movement.

6 0
2 years ago
Read 2 more answers
PLEASE HELP!!! 20 PIONTS!!!
timama [110]

Answer:

Transverse waves are always characterized by particle motion being perpendicular to wave motion. A longitudinal wave is a wave in which particles of the medium move in a direction parallel to the direction that the wave moves.

Explanation:

The movement of the medium is different. In the longitudinal wave, the medium moves left to right, while in thee transverse wave, the medium moves vertically up and down. Longitudinal waves have a compression and rarefaction, while the transverse wave has a crest and a trough. Longitudinal waves have a pressure variation, transverse waves don't have pressure variation. Longitudinal waves can be propagated in solids, liquids and gases, transverse waves can only be propagated in solids and on the surfaces of liquids. Longitudinal waves have a change in density throughout the medium, transverse waves don't.

4 0
2 years ago
Other questions:
  • If a compasses moved close to a magnet, the compass will always point?
    12·1 answer
  • A spacecraft in the shape of a long cylinder has a length of 100 m,and its mass with occupants is 1490kg. It has strayed too clo
    14·1 answer
  • For an isolated system, the law of conservation of momentum is valid: A. for inelastic collisions. B. for elastic collisions. C.
    5·1 answer
  • What kind of energy drives all the processes important to life on earth?
    10·1 answer
  • Which is the correct symbol for an isotope of iodine with 53 protons and 78 neutrons?<br> es )))
    14·1 answer
  • You serve a volleyball with a mass of 2.1 Kg. The ball leaves your hand with a speed of 30m/s. The ball has __________________ e
    9·1 answer
  • How does natural selection result in adaptations in a species?
    14·1 answer
  • A student starts from the hostel and goes to his friend's house and then to his school. A is the displacement vector from the ho
    14·1 answer
  • On a part-time job, you are asked to bring a cylindrical iron rod of density 7800 kg/m3 , length 92.6 cm and diameter 2.95 cm fr
    8·1 answer
  • An electric hoist does 500 joules of work lifting a crate 2 meters. How
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!