Question

Three forces push on a 90-Newton object at once. One force of 20.0 Newtons at 30 degrees, a second force of 31.0 Newtons at 180 degrees and a third force of 18.4 Newtons at 240 degrees. (All directions are given as a counter-clockwise angle of rotation from due East.) If the object starts at rest, how fast (in m/s) will it be moving in 24.7 seconds?

Answer 1

My answer is 61.56 m/s but it's incorrect?

Answer 2

Here's my FBD