Question

A 9.80 N object is connected to a 39.2 N object a string passing over a frictionless pulley. Starting from rest, the 39.2 object moves to the right on a flat, frictionless surface. A graph of acceleration, a, and displacement, t, would be described as:

(A) a is constant and positive; x is parabolic opening upward.

(B) a is constant and positive; x is parabolic opening downward.

(C) a is constant and negative; x is parabolic opening upward.

(D) a is constant and negative ; x is parabolic opening downward .

Answer 1

The correct option is (A).