Answer:
After 3 seconds
Step-by-step explanation:
Given

Required
Time the drop will hit the ground
When the drop hits the ground,

So, we have:

Rewrite as:

Expand

Factorize

Factor out 5t + 1

Split
or 
Solve for t
or 
Time cannot be negative.
So:

The length is 10 meters.
150 divided by 15 is 10.
Hope this helps!
Answer:
ammmm walang lumabas
Step-by-step explanation:
sorry talaga po sa susunod nalang