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3 years ago

15

I have an answer but I'm not it sure about it. I just need someone to help confirm it. Thanks

1 answer:

Alekssandra [29.7K]3 years ago

4 0

Answer:

0.40s. He's dead, Jim.

Explanation:

The block accelerates at a rate of $9.81 ms^-^2$ . The moment it's 14 meters from the ground, it has traveled 39 meters, in about $39=\frac12(9.81)t^2 \rightarrow 2.82 s$ .

For the man to dodge, the time left is the distance the block takes to go down to 2 meters from ground, or 51 meters from its starting point. Which translates in $51=\frac12(9.81)t^2\rightarrow 3.22s$

He has thus less than half a second ( $0.40s$ to be exact) to dodge.

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