Question

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

Answer 1

0.40s. He's dead, Jim.

Step-by-step 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.