Problem $5$

Consider the track shown in the figure. The section $AB$ is one quadrant of a circle of radius $2\mathrm{.}0$ m and is frictionless. B to C is a horizontal span $2\mathrm{.}9$ m long with a coefficient of kinetic friction ${}_k=0\mathrm{.}21.$ The section $CD$ under the spring is frictionless. A block of mass $1\mathrm{.}0$ kg is released from rest at A $.$ After sliding on the track, it compresses the spring by $0\mathrm{.}30$ m $.($Figure $1)$

Figure

$1$ of $1$

Determine the velocity of the block at point B$.$

Express your answer to $3$ significant figures and include the appropriate units.

$$

Request Answer

Part B