A6.4-kg block of ice at -1.5 °C slides on a
horizontal surface with a coefficient of kinetic
friction equal to 0.069. The initial speed of the block
is 7.3 m/s and its final speed is 5.2 m/s.
Part A
Assuming that all the energy dissipated by kinetic friction goes into melting a small mass m of the ice, and
that the rest of the ice block remains at -1.5 °C, determine the value of m
Express your answer using two significant figures.
m=
