At sea level, atmospheric pressure is 1.0 * 10 ^ 5 * P * a ,​

The slope of a good speed time indicates ? a. velocity b. acceleration c. direction d. speed

May someone explain how to do this question?

Apackage of supplies is dropped from a plane, and one second later a second package is dropped. neglecting air resistance, the relative velocity of the 1st package viewed from the second will 56) a) increase. b) be constant. c) be zero. d) depend upon their weight. e) decrease