A metal ball at 30^@ C is dropped from a height of 6.2 km. The ball is heated due to the air resistance and it completely melts before reaching the ground. The molten substance falls slowly on the ground. Calculate the latent heat of fusion of metal. Specific heat of lead = 126 J kg^(-1)""^(@)C^(-1). Melting point of metal is 200^@ C ("use" g= 10 ms^(-2))

A metal ball at 30^@ C is dropped from a height of 6.2 km. The ball is

1.	A metal ball at 30^@ C is dropped from a height of 6.2 km. The ball is heated due to the air resistance and it completely melts before reaching the ground. The molten substance falls slowly on the ground. Calculate the latent heat of fusion of metal. Specific heat of lead = 126 J kg^(-1)""^(@)C^(-1). Melting point of metal is 200^@ C ("use" g= 10 ms^(-2))
Answer» SOLUTION :`40.58kJ //KG`