Answer:
The rock will strike with a speed of 21.68 m/s.
Step-by-step explanation:
It is given that, a person drops a rock for me bridge to the water 24 m below. We need to find the speed with the rock strike the water. It will move under the action of gravity. So, the speed of the rock is given by :
So, the rock will strike with a speed of 21.68 m/s.