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
mihalych1998 [28]
3 years ago
5

At what point in a projectile’s trajectory does it experience a minimum velocity? as soon as it is launched half way to its high

est point at its highest point just before it lands
Physics
2 answers:
andrew-mc [135]3 years ago
6 0

Answer:

at the highest point

Explanation:

velocity of a particle becomes minimum when the  particle projected halfway or from ground reaches its maximum height.

VLD [36.1K]3 years ago
5 0
No matter what direction a projectile is traveling, its velocity
will be minimum at the highest point in its trajectory.

I just realized ... that's also true of an Earth satellite.
You might be interested in
A test rocket is launched vertically from ground level (y = 0 m), at time t = 0.0 s. The rocket engine provides constant upward
SVETLANKA909090 [29]
The important thing to note here is the direction of motion of the test rocket. Since it mentions that the rocket travels vertically upwards, then this motion can be applied to rectilinear equations that are derived from Newton's Laws of Motions.These useful equations are:

y = v₁t + 1/2 at²
a = (v₂-v₁)/t

where
y is the vertical distance travelled
v₁ is the initial velocity
v₂ is the final velocity
t is the time 
a is the acceleration

When a test rocket is launched, there is an initial velocity in order to launch it to the sky. However, it would gradually reach terminal velocity in the solar system. At this point, the final velocity is equal to 0. So, v₂ = 0. Let's solve the second equation first.

a = (v₂-v₁)/t
a = (0-30)/t
a = -30/t

Let's substitute a to the first equation:
y = v₁t + 1/2 at²
49 = 30t + 1/2 (-30/t)t²
49 = 30t -15t
49 = 15 t
t = 49/15
t = 3.27 seconds

3 0
3 years ago
Air that enters the pleural space during inspiration but is unable to exit during expiration creates a condition called a. open
sertanlavr [38]

Answer:

The correct answer is d. tension pneumothorax.

Explanation:

The increasing build-up of air that is in the pleural space is what we call the tension pneumothorax and this happens due to the lung laceration that lets the air to flee inside the pleural space but it does not return.

4 0
3 years ago
John runs around a 126.5 m circular track 3.5 times in 4.17 minutes. What is his average speed?
sdas [7]
Average speed = distance traveled / time

average speed  = (126.5 m * 3.5 laps) / (4.17 min)

= 106.2 m/min
6 0
3 years ago
A piece of solid copper, at 10oC, is dropped into a graduated cylinder of 100°C water. Which statement BEST describes the change
enot [183]

Answer:

D

Explanation:

just took the test

6 0
3 years ago
Read 2 more answers
Does coefficient of thermal expansion vary with temperature?
N76 [4]

Answer:

yes

Explanation:

8 0
3 years ago
Other questions:
  • A cat with mass 4.0 kg jumps down to the floor from a bookcase 2.0 m high. What is the cat's change in
    6·2 answers
  • What time of day does the full moon rise? (Estimate the hour: 1 pm? 2pm? etc. and explain your answer.)
    13·1 answer
  • Why cant you feel the force attraction between mars
    11·1 answer
  • Radon is a radioactive gas found below ground. If a sample of radon occupies 29 mL at 25 oC, what volume will it occupy at 500 K
    10·1 answer
  • A constant net torque is applied to an object. Which one of the following will NOT be constant?
    12·1 answer
  • If an object has a volume of 2.5mL and a mass of 10g than what is the density of an object?
    7·1 answer
  • A uniform conducting rod of length 34 cm has a potential difference across its ends equal to 39 mV (millivolts). What is the mag
    8·2 answers
  • A client is receiving an IV solution of sodium chloride 0.9% (Normal Saline) 250 ml with amiodarone (Cordarone) 1 gram at 17 ml/
    15·1 answer
  • What will happen if a car experiences a 300 N force to the right from the engine and a separate 150 N force due to friction and
    11·1 answer
  • What is the Frequency of a light wave with a Wavelength of 680 x 10^-7m?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!