The formula for calculating this is v = √(2gy)
When v is velocity, g is acceleration due to gravity and y is displacement (i.e. Height).
You can do the math.
A worker drops a wrench from the top of a tower 78.3 m tall. What is the velocity when the wrench strikes the ground? The acceleration of gravity is 9.81 m/s2 . Round to the nearest hundredth place Answer in units of m/s.
I'll answer your question with a question:
A student tries to get members of a website to do his/her homework for them. The teacher then finds out. How long do you think it would take for the teacher to take said student down to the principals office