A $79\mathrm{.}0-kg$ fullback running east with a speed of $6\mathrm{.}00\frac{m}{s}$ is tackled by a $91\mathrm{.}0-kg$ opponent running north with a speed of $3\mathrm{.}00\frac{m}{s}.$

$($a$)$ Explain why the successful tackle constitutes a perfectly inelastic collision.

Two objects collide and stick together, moving with the same velocity afterwards.

Score: $1$ out of $1$

Comment:

$($b$)$ Calculate the velocity of the players immediately after the tackle.

magnitude

$\frac{m}{s}$

direction

Your incorrect answer may have resulted from roundoff error. Make sure you keep extra significant figures in intermediate steps of your calculation. $$ north of east

$($c$)$ Determine the mechanical energy that disappears as a result of the collision.

Account for the missing energy.

Score: $1$ out of $1$

Comment:A $79\mathrm{.}0-kg$ fullback running east with a speed of $6\mathrm{.}00\frac{m}{s}$ is tackled by a $91\mathrm{.}0-kg$ opponent running north with a speed of $3\mathrm{.}00\frac{m}{s}.$

$($a$)$ Explain why the successful tackle constitutes a perfectly inelastic collision.

Two objects collide and stick together, moving with the same velocity afterwards.

Score: $1$ out of $1$

Comment:

$($b$)$ Calculate the velocity of the players immediately after the tackle.

magnitude

$\frac{m}{s}$

direction

Your incorrect answer may have resulted from roundoff error. Make sure you keep extra significant figures in intermediate steps of your calculation. $$ north of east

$($c$)$ Determine the mechanical energy that disappears as a result of the collision.

Account for the missing energy.

Score: $1$ out of $1$

Comment: