A cube of mass m = 69 kg slides along a horizontal surface. The coefficient of friction between the cube and the surface is ?k = 019. The cube has an initial speed of v _o = 19 m/s in the positive x-direction as shown.

Part (a) Write an expression for thc xmmponcnt of the frictional force the cube experiences, Ff, in terms of the given variables and variables available in the palette.

Part (b) What is the magnitude of the frictional force in N?

y V m X Ff=1 a ola 0 g j P Submit 0% deduction per hint. Hints remaining: 3 a -KUP h k t Hint Hk d i m Vo 7 8 9 5 6 / 1 2 3 + 0 END VO BACKSPACE DEL CLEAR ^^^4 Feedback HOME I give up! Feedback: 1% deduction per feedback. Grade Summary Deductions Potential 0% 100% Submissions Attempts remaining: 5 (3% per attempt) detailed view