Speed After a Drop Calculator
🛹 Work, energy & power. Use the Speed after a drop formula to find speed at the bottom, g, height dropped: pick the value you want, type the others, and the answer updates as you go.
All the potential energy becomes kinetic (no friction). The mass cancels.
Pick the ○ next to the value you want to find, fill in the others, and it solves as you type.
What each letter means
| Quantity | Unit |
|---|---|
| Speed at the bottom | m/s |
| g | N/kg |
| Height dropped | m |
Worked example
Find the speed at the bottom when g = 9.81 N/kg, Height dropped = 6.5 m.
Using v = √(2gh): Speed at the bottom = 11.293 m/s.
Frequently asked questions
What is the formula for Speed after a drop?
v = √(2gh). All the potential energy becomes kinetic (no friction). The mass cancels.
What do the letters stand for, and what units are used?
Speed at the bottom in m/s, g in N/kg, Height dropped in m.
How do you calculate speed at the bottom?
Put the values into v = √(2gh). For example, with g = 9.81 N/kg, Height dropped = 6.5 m, speed at the bottom = 11.293 m/s.
Can I solve for a different value?
Yes. In the calculator above, pick the circle next to any value (speed at the bottom, g, height dropped) and fill in the others: it rearranges the formula for you.
