1. The problem statement, all variables and given/known data An object is dropped from ret from a height of 39.4m. What is its average acceleration (assumed to be constant) if it hits the ground with a speed of 1.61m/s? 2. Relevant equations 3. The attempt at a solution I actually got the answer from this question. But I am wondering why a is not -9.8m/s^2 The answer is 3.29×10-2 m/s^2, shouldn't it be negative as acceleration is acting downwards?