Thermodynamics question thanks so much for the help

[noah kessler]

Homework Statement

a small lump of ice at 0 degrees celsius falls to the Earth's surface. when the hailstone hist the surface, all of the kinetic energy of the hailsotne is transferred to thermal energy in the ice. calculate the minimum speed of the hailstone so that it just melts when it hits the surface.

specific latent heat of fusion of ice is 340kJ/ kg

Homework Equations

q=mcΔt
E_k=1/2mv²
q=ML

The Attempt at a Solution

not sure where to start

 

[Astronuc]

What happens when a solid melts? What is the significance of the 'heat of fusion'?

when the hailstone hits the surface, all of the kinetic energy of the hailstone is transferred to thermal energy in the ice.

How does this statement relate to the above questions?