Consider the 65.0-kg ice skater being pushed by two others shown in the figure below. 2:53: 36 (a) Find the direction (in degrees counterclockwise from the +x-axis) and magnitude (in N) of Foot the total force exerted on her by the others, given that the magnitudes F, and F2 are 24.0 N and 18.6 N, respectively. (Assume Fj points in the positive x direction.) magnitude N direction counterclockwise from the +x-axis (b) What is her initial acceleration (in m/s) if she is initially stationary and wearing steel-bladed skates that point in the direction of Foot? (Assume friction is negligible. Enter the magnitude only.) m /s 2 (c) What is her acceleration (in m/s2) assuming she is already moving in the direction of Foot? (Assume friction is negligible. Enter the magnitude only.) m/s 2