Part C

Calculate the work done by gravity.

$W_G=$

$$

$$

J

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Part D

Calculate the work done by the normal force.

$W_N=$

$$

$$

$\sqrt[]{}$

$A$

$?$

$$

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Part E

Calculate the final kinetic energy of the block.

Problem $7\mathrm{.}78$

A $6\mathrm{.}10$ kg block is pushed $9\mathrm{.}50$ m up a smooth $38\mathrm{.}0$ inclined plane by a horizontal force of $80\mathrm{.}0$ N $.$ If the initial speed of the block is $3\mathrm{.}05\frac{m}{s}$ up the plane.

Part A

Calculate the initial kinetic energy of the block.

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Part B

Calculate the work done by the $80\mathrm{.}0$ N force.

$$

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Part C

Calculate the work done by gravity.