$001,10\mathrm{.}0$ points

Two blocks are arranged at the ends of a

massless string as shown in the figure. The

system starts from rest. When the $2\mathrm{.}26kg$

mass has fallen through $0\mathrm{.}43m,$ its downward

speed is $1\mathrm{.}31\frac{m}{s}.$

The acceleration of gravity is $9\mathrm{.}8\frac{m}{s^2}.$

What is the frictional force between the

$3\mathrm{.}7kg$ mass and the table?

Answer in units of $N.$