Question

A lead block of mass 2kg falls from a height h to the ground. The specific heat capacity of lead is 120J/kgk and the rise in temperature is 0.4°C. Calculate the height

Answer 1

Answer

Change Potential energy = change in heat of leat

$Mgh=MS\Delta T$

$h=\frac{S\Delta T}{g}$

By putting the value

$h=\frac{120\times0.4}{9.8}=4.89m$