A Horse-Drawn Coach Is Decelerating at 3

Multiple Choice

A horse-drawn coach is decelerating at 3.0 m/s² while moving in a straight line horizontally.A 350-g mass is hanging on a string 1.6 m long from the ceiling of the coach.The angle that the string makes with the vertical is

A) 9.3º toward the front of the coach.
B) 17º toward the front of the coach.
C) 9.3º toward the back of the coach.
D) 2.5º toward the front of the coach.
E) 0º,or straight down.