A 25.0 kg unloaded sleigh is initially at rest on a horizontal frictionless ice surface. The initial position is the origin (x = 0). A worker applies a force parallel to the x-axis of 80.0 N at t = 0 on the sleigh. The force is withdrawn at t = 2.50 s. Determine the speed and position of the sleigh at t = 2.50 s.

• A. speed = 8.00 m/s; position = 20.0 m
• B. speed = 18.3 m/s; position = 22.8 m
• C. speed = 24.5 m/s; position = 30.6 m
• D. speed = 24.5 m/s; position = 61.3 m
• E. speed = 18.3 m/s; position = 45.8 m
• F. speed = 8.00 m/s; position = 10.0 m

Answer: (F)