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romanna [79]
3 years ago
12

A ball is kicked and flies from point P to Q following a parabolic path in which the highest point reached is T. The acceleratio

n of the ball is?
Physics
2 answers:
Semenov [28]3 years ago
7 0
After the foot leaves the ball, the acceleration is always downward and is equal to g at all points
nikdorinn [45]3 years ago
3 0
There's not enough information to calculate the acceleration of the ball WHILE it's in contact with the kicker's foot. But once it leaves the toe of the kicker, and until it hits the ground, its acceleration is 9.8 m/s^2 downward, because of gravity.
You might be interested in
A crane uses an average force of 5,200 N to left a girder 25m. How much work does the crane do on the girder?
Sphinxa [80]

Answer:

<h2>130,000 J</h2>

Explanation:

The work done by an object can be found by using the formula

workdone = force × distance

From the question we have

workdone = 5200 × 25

We have the final answer as

<h3>130,000 J</h3>

Hope this helps you

4 0
3 years ago
Is the classification for an instrument that produces sound whne a string or strings stretched between two points is plucked?
Yuki888 [10]
The correct answer for the question is Chordophone 
Chordophone is an instrument in which a stretched, vibrating string produces the initial sound. Strings instruments produce sound through the vibration of strings. The length, tightedness, and thickness determines the sound produced by the strings. 
5 0
3 years ago
Shown here are astronomical objects located at different distances from Earth. Rank the objects based on their distances from Ea
nevsk [136]

Answer: star on far side of Andromeda Galaxy- star on near side of Andromeda Galaxy- star on far side of Milky Way Galaxy- star near center of Milky Way Galaxy- Orion Nebula- Alpha Centauri- Pluto-The Sun

Explanation:

Andromeda is the nearest spiral galaxy to our Milky way galaxy. The star on the far side of the Andromeda galaxy would be farthest from Earth. Then, the star at the near side of the Andromeda galaxy.

The Earth along with the Sun and other planets are located in the Orion arm of the Milky way. It is about 8 kpc from the center of the Milky way. Thus, the next farthest astronomical object would be the star on the far side of the milky way and then a star near the center of the Milky way galaxy.

Orion Nebula is 1344 ly away from Earth. Alpha centauri is 4.36 ly away from earth. Pluto is about 28 AU away from Earth and Sun is 1 AU distance away.

4 0
3 years ago
When a driver presses the brake pedal, his car stops with an acceleration of -0.5 m/s². How far will the car travel while coming
Katyanochek1 [597]

Answer:

64 m

Explanation:

Using the following symbols

x: distance

v: velocity

a: constant acceleration

t: time

v₀: initial velocity

x₀: initial position

The equations of motion for a constant acceleration are given by:

(1) x = 0.5at²+v₀t+x₀

(2) v = at+v₀

From equation (2) you can calculate the time t it takes the car to come to a complete stop.

(3) t = (v-v₀)/a

Now you plug equation (3) in equation(1):

(4) x = 0.5a((v-v₀)/a)²+v₀((v-v₀)/a)+x₀

In equation (4) the position x is the only unknown.

8 0
3 years ago
Una mujer de 65 kg, se balancea sobre uno de los tacones de sus zapatos. Si el tacón es circular con un radio de 0,5 cm, ¿qué pr
goldenfox [79]
Explicacion

m = 65 kg

g = 10 m/s²

r = 0.5 cm (1m / 100 cm) = 0.05 m

A = π r² = π (0.05 m)² = 0.00785 m²

F =W = m g = 65 kg(10 m/s²) = 650 N

P = F/A = 650 N / 0.00785 m² = 82802.54 N/m²
7 0
3 years ago
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