I need help with this question from A to B

(5%) Problem 14: A contestant in a winter sporting event pulls a 48 kg block of ice in the positive horizontal direction with a rope over his shoulders across a frozen lake as shown in the figure. Assume the coefficients of static and kinetic friction are u, =0.1 and up=0.03. F 250 Otheexpertta.com A 50% Part (a) Calculate the minimum force F he must exert to get the block sliding in newtons. A 50% Part (b) What is its acceleration in m/'s once it starts to move, if that force is maintained? Grade Summary a = Deductions 0% Potential 100% sin( cos() tan 7 8 9 HOME Submissions cotan asin( acos() F. Attempts remaining: 6 atan() acotan() sinh() 1 2 3 (0% per attempt) detailed view cosh( tanh() cotanh() T END O Degrees O Radians VO BACKSPACE DEL CLEAR Submit Hint Feedback I give up! Hints: 0% deduction per hint. Hints remaining: 3 Feedback: 0% deduction per feedback