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At a height of 3.2 meters, the final speed of the model rocket is 26.05 m/s.
Given the following data:
- Initial speed = 0 m/s (since the model rocket accelerated from rest).
- Acceleration = 106
- Distance (height) = 3.2 meters.
To find the final speed of the model rocket, we would use the third equation of motion;
Where:
- V is the final speed.
- U is the initial speed.
- a is the acceleration.
- S is the displacement or distance covered.
Substituting the given parameters into the formula, we have;
Final velocity, V = 26.05 m/s
Read more: brainly.com/question/8898885
We can solve the problem by using the following equation:
where
vf is the final speed of the rocket
vi=0 is the initial speed of the rocket (it starts from rest)
is the rocket's acceleration
S=3.2 m is the distance covered by the rocket
Re-arranging the equation, we find the velocity of the rocket after 3.2 m:
B. 3 g/L in weight
C. 15 m/s2
D. 10 km/hr eastward
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Velocity of a moving body is its distance covered by time. Thus, it has the unit of m/s, km/hr. etc. . Therefore, among the given options, 25 m/s and 10 km/hr. are represents a velocity.
What is velocity ?
Velocity is a physical quantity having both direction and magnitude. Thus, it is a vector quantity and it measures the distance covered by an object per unit time.
Velocity is the ratio of distance to the time, hence its units are m/s, km/hr etc. The rate of change in velocity is called acceleration. Thus acceleration is change in velocity by change in time. Thus, its unit is m/s². Hence, 15 m/s² represents acceleration.
The quantity 3 g/L represents the mass per volume and hence it is density of a substance or can be the concentration of a solution. Thus, options A and D are correct.
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Answer:A
Explanation:
It’s A because the velocity is measured in m/s
Waves that move matter back and forth are called a.transverse waves b.longitudinal wave c. Medium wave
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Longitudinal wave
b. it has mass
c. it is changing position
d. it has a reference point
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because an object need to be in motion to make any kind of movement
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Liquid to solid
By adding or removing heat energy aka thermal energy
By adding or removing thermal energy
they do not move
B.
they vibrate
C.
they slide around each other
D.
they fly around freely
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Matter is anything that is made up of atoms. The matter word is mainly used in science. Therefore Option C are correct option.
What is matter?
Matter is a substance that has some mass and can occupy some volume. . Matter can be solid, liquid or gas.
In case of solid, particles are fixed at its mean position, they do not move at all. In gas, particles move very fast. They do not remain at its mean position. They continuously keep on moving with high kineticenergy called Brownian motion. In liquid particles are moveable, they are neither very stiff nor they move very fast. There is surface tension between the particles and the layers of liquid. Therefore, the layers of liquid just slide around each other. And this property of liquid is the reason for its fluidity.
Thus option c is correct option
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Answer:
C
Explanation:
Hope this helps :)