An open lift is descending at a steady speed of 2.5 m/s relative to the ground as shown in the figure below. A person in the lift throws a small box horizontally outward from the lift with a speed of 10.0 m/s. Determine the magnitude and direction of the initial velocity of the box relative to a person standing on the ground.

• A. v = 10.3 m/s, 14° below the positive x-axis.
• B. v = 10.3 m/s, 76° below the positive x-axis.
• C. v = 7.50 m/s, 14° above the positive x-axis.
• D. v = 7.50 m/s, 76° above the positive x-axis.

Answer: (A)