A puck is moving on an air hockey table. Relative to an x, y coordinate system at time t = 0 s, the x components of the puck's initial velocity and acceleration are v0x = +7.8 m/s and ax = +5.3 m/s2. The y components of the puck's initial velocity and acceleration are v0y = +7.8 m/s and ay = -2.1 m/s2. Find (a) the magnitude v and (b) the direction θ of the puck's velocity at a time of t = 0.50 s. Specify the direction relative to the +x axis.
(a) v = Entry field with incorrect answer Entry field with correct answer
(b) θ = Entry field with incorrect answer degrees Entry field with correct answer the +x axis