- #1

AbsoluteZer0

- 125

- 1

## Homework Statement

You throw a snowball at 0.0 Celsius at a brick wall. If you want it to melt completely, how fast will you have to throw it?

## Homework Equations

[itex] Q = mL [/itex]

[itex] E_k = \frac{1}{2} mv^2 [/itex]

## The Attempt at a Solution

I initially reasoned that you would use Q = mL to find the energy needed to melt it and then substitute that into the Kinetic energy formula, giving:

[itex] mL = \frac{1}{2} mv^2 [/itex]

However, I am given no information regarding the mass of the snowball and haven't figured out a method to find that mass.

Any suggestions?

Thanks,