- #1

physicslover12

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- Homework Statement
- A dishonest woman Sues a poor innocent young man, claiming that he intentionally dropped (free fall) a stone from the top of a bridge which is 6.0 m above the ground, which damaged the trunk of her car. The complainant admits that she was driving at the maximum speed allowed of 100 km / h. You are called as an expert in this case (you are a physicist, right?). By making the necessary approximations, will you be able to save the young man ?

- Relevant Equations
- Y=Yo+vot+0,5a(t^2)

X=Vot+Xo

0=6-4.9(t^2)

0=-27,7t+Xo

From the first equation,

T= 1.10s

From the second equation,

(Xo/27,7)=t

0=6-4.9((Xo/27,7)^2)

We solve for Xo = 30,65

Now, we have

X=-27,7t+30,65

If t=1,10

Then , -27,7(1,10)+30,65=0,18 which is not equal to 0.

Which means the stone hits the ground first.

Is my answer correct ?

0=-27,7t+Xo

From the first equation,

T= 1.10s

From the second equation,

(Xo/27,7)=t

0=6-4.9((Xo/27,7)^2)

We solve for Xo = 30,65

Now, we have

X=-27,7t+30,65

If t=1,10

Then , -27,7(1,10)+30,65=0,18 which is not equal to 0.

Which means the stone hits the ground first.

Is my answer correct ?