Physics, 24.02.2021 04:40 izeahzapata1

The graph below shows the motion of a ball rolling on a straight track. Motion of a Ball
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8
6
(ա) օաeյsig
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Time (s)
What was the ball's average speed during the time represented on the graph?
A)
0.2 m/s
B)
0.5 m/s
C)
5.0 m/s
D
10.0 m/s
Hey

The graph below shows the motion of a ball rolling on a straight track.

Motion of a Ball
10
8
6
(

Answers: 3

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Answer from: Quest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

Answer from: Quest

Good moring let me you on this question the answer the electric force have a good day ; )

Answer from: Quest

Lexy is correct because angle r is between the incident wave, n = 0, and a diffracted wave.

Answer from: Quest

Since you have not included the experiment situation and the data, of course, i can not give you specific details about it. but i can you with this question.1) i will assume that the motion is projectile (parabolic) motion.2) yes, the horizontal distance depends on the horizontal velocity as, naming vx the horizontal velocity and t the time, it is: x = vx × t3) now, observe that the flight time depends on the vertical velocity as, naming voy the initial vertical velocity, t the time and y the vertical distance before reaching the ground: y = yo + voy×t - gt² / 2.the higher the initial vertical velocity (voy) the longer the object will be flying and so t will be higher in the equation for the horizontal distance.that explains the relationship between the horizontal distance and the horizontal velocity.

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The graph below shows the motion of a ball rolling on a straight track. Motion of a Ball
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