A block of mass 𝑚 = 25 𝑘𝑔 is sliding at an initial velocity 𝑣 . It 0 = 10 𝑚/𝑠 experiences a pushing force measured in Newtons and given by the equation 𝑃 = 10𝑥 starting at a position x=0. The block is pushed along a surface with 2

• 2 coefficients of friction µ and . 𝑠 = 0. 80 µ 𝑘 = 0. 25 a. Find the work done by the pushing force while the block is pushed in a straight line from x = 0 m to x = 5.0 m. b. Find the work done by friction while the block is pushed in a straight line from x = 0 m to x = 5.0 m. c. Find the speed of the block when it is at the position x = 5.0 m