You shoot an arrow at the speed of 10m/s upward at an angle 60° to the horizontal. What is the velocity vector of the basketball after 2 seconds (in m/s, neglect air resistance, g = 9.8m/s2) ?
v=12 m/s, θ =65.6° to the horizontal
v=12 m/s, θ =24.4°to the horizontal
v=5 m/s, θ =30° to the horizontal
v=12 m/s,θ = 65.6° to the vertical
v=5 m/s, θ =24.4° to the vertical