A 25-kg crate is pushed across a frictionless horizontal floor with a force of 20 N, directed 20°below the horizontal.The acceleration of the crate is: A)0.27 m/s² B)0.75 m/s² C)0.80 m/s² D)170 m/s² E)470 m/s²

Question

Quizplus · Accepted Answer

The horizontal component of the force is 20 N * cos(10°). The acceleration is calculated using Newton's second law: a = F/m = (20 N * cos(10°))/25 kg ≈ 0.75 m/s².

A 25-Kg Crate Is Pushed Across a Frictionless Horizontal Floor