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scoray [572]
3 years ago
10

For this car, predict the shape of a graph that shows distance (x) versus time (t). Note that time is the independent variable a

nd will be on the bottom axis.
NEED HELP ASAP
Physics
2 answers:
Mariana [72]3 years ago
6 0
Idk I haven’t learned this yet
nata0808 [166]3 years ago
5 0

Answer:

I expect this to be a linear graph with a constant, positive slope, where x increases linearly as t increases.

Explanation:

I out a different answer but this is the correct one. Hope this helps!

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A ball is ejected to the right with an unknown horizontal velocity from the top of a pillar that is 50 meters in height. At the
dimulka [17.4K]

Answer:

15.67 m/s

Explanation:

The ball has a projectile motion, with a horizontal uniform motion with constant speed and a vertical accelerated motion with constant acceleration g=9.8 m/s^2 downward.

Let's consider the vertical motion only first: the vertical distance covered by the ball, which is S=50 m, is given by

S=\frac{1}{2}gt^2

where t is the time of the fall. Substituting S=50 m and re-arranging the equation, we can find t:

t=\sqrt{\frac{2S}{g}}=\sqrt{\frac{2(50 m)}{9.8 m/s^2}}=3.19 s

Now we now that the ball must cover a distance of 50 meters horizontally during this time, in order to fall inside the carriage; therefore, the velocity of the carriage should be:

v=\frac{d}{t}=\frac{50 m}{3.19 s}=15.67 m/s

8 0
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