Homework Statement
A person drives his SUV into a concrete wall. The car was initially moving East at 12.5m/s and the hood crumples a distance of 1.2m during the crash. What is the acceleration of the car during the crash? (don't forget directions when dealing with acceleration)
I don't...
Homework Statement
You throw a ball straight up with a speed of 14m/s. What is the acceleration of the ball 1.5s after you threw it?
Alright, the dilemma I am having is the answer is -9.8m/s^2.
It doesn't make sense to me how the acceleration can be that at 1.5s. The -9.8m/s^2 (gravity...