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12345 [234]
4 years ago
13

Two trains leave a station at the same time, Train A travels at a constant speed of 16 m/s. Train B starts at 8.0 m/s but accele

rates constantly at 1.0 m/s squared. After 10.0 seconds, which train has the greater speed?
Physics
1 answer:
tekilochka [14]4 years ago
8 0

Train B is gonna have a greater speed after 10 seconds


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A cheetah runs at 93km/he to the east. This describes the cheetah’s
Ainat [17]
The answer is average speed
8 0
3 years ago
Given the force diagram of the basketball, what can you tell about the basketball motion?
VARVARA [1.3K]

Newton's laws allow to find the result for the movement of the basketballl:

  • On the vertical axis the ball is on the ground.
  • On the horizontal axis the ball is accelerating in the direction of the pushing force.

Newton's laws establish the relationship between the forces on objects:

  • The 1st law states that if the net force is zero the object is stationary or with constant speed.
  • The 2nd law gives a relation of the force with the mass and the acceleration of the body.
  • The 3rd. Law states that the force appears in pairs, one on each body with the same magnitude, but in the opposite direction.

Let's apply these principles to the ball's motion diagram.

The two vertical forces are in the opposite direction, one is due to the weight of the body and the other is the attraction of the earth to the support of the ball, they are of equal magnitude, not their action-reaction force and reluctant because it is applied to the same body

       In conclusion we can say that the ball is on the ground.

The two horizontal forces are in the opposite direction, the thrust force is greater than the friction therefore using Newton's second law the ball must be accelerating in the direction of the thrust force.

       In conclusion we can say that the ball is accelerating in the direction of the pushing force.

In conclusion using Newton's laws we can find the result for the motion of the basketball:

  • On the vertical axis the ball is on the ground.
  • On the horizontal axis the ball is accelerating in the direction of the pushing force.

Learn more about Newton's laws here:  brainly.com/question/3715235

8 0
3 years ago
You are stowing items and come across an aerosol bottle of hairspray.what should you do?
Vlad [161]

Answer:

below

Explanation:

5 0
3 years ago
Light travels at a speed of about 3.0 108 m/s. (a) how many miles does a pulse of light travel in a time interval of 0.1 s, whic
babunello [35]

Speed of light is given as

c = 3 * 10^8 m/s

time interval is given as

\Delta t = 0.1 s

so the distance covered by the light is given as

d = v * \Delta t

d = 3 * 10^8 * 0.1 = 3 * 10^7 meter

now as we know that

1 mile = 1609 meter

so the distance moved by light is

d = \frac{3 * 10^7}{1609} = 18645.12 miles

now for the comparision of this distance with diameter of earth

as we know that radius of earth is

R = 6.38 * 10^6 m

so the diameter of earth will be

d = 2R = 12.76 * 10^6 m

now the ratio of diameter with the distance that light move will be

\frac{distance}{diameter} = \frac{3 * 10^7}{12.76 * 10^6}

\frac{distance}{diameter} = 2.35

<em>so it is 2.35 times more than the diameter of earth</em>

4 0
3 years ago
You are sitting in a commercial jetliner. It is on the runway and ready to take off. Before it does, clever soul that you are, y
wariber [46]

Answer:

a.=4.78 m/s2

b. the thread will remain vertical

Explanation:

a.

For jet acceleration as you know,

Weight due to gravity given as

F= w =mg

and body movement with acceleration as

F= ma

tan\theta=\frac{ma}{mg}

tan\theta=\frac{a}{g}

a=gtan\theta

a=9.81\times tan 26^{0}

a=4.78\frac{m}{s^{2} }

Its acceleration of plane

b.

For planes attaining constant velocity

a = 0  and tan∅ = 0

so Ф = 0

hence the thread will be remain vertical

4 0
3 years ago
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