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guajiro [1.7K]
3 years ago
12

. What is the velocity of a free- falling object after 5 seconds? (Use 10 m/s2 for gravity.)

Physics
1 answer:
Viefleur [7K]3 years ago
8 0

Answer:

vf = 50 m/s

Explanation:

The equation for this kinematic problem is:

vf = vi + at

We are given:

a = 10m/s^2

vi = 0m/s

t = 5 sec

vf = ?

Solve for final velocity:

vf = 0 + 10(5)

vf = 50 m/s

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Let the Blaise runs for time "t" to complete the race

so the total distance he moved is given by

d_1 = 1* t

Now Issac runs for time t = "t - 2*60"

because it took rest for 2 minutes

d_2 = 2*(t - 120)

now it is given that Blaise wins by 10 m distance

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t = 230 s

now the distance moved by Blaise is given by

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Answer:

Please find the answer in the explanation

Explanation:

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The correct answer is still object Z because it has the highest slope.

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