what is the slope of a velocity-time graph?
acceleration
how do you calculate the slope on a velocity-time graph?
by drawing a tangent line
what is a tangent line?
line that touches a curve at only one point
how do you calculate the slope?
slope = (→d2 - →d1) / (t2 - t1)
what does a straight-line velocity-time graph indicate?
constant acceleration
what is acceleration?
refer to the rate of change in velocity
what is deceleration ?
negative acceleration
when does acceleration/deceleration occur?
acceleration = →v and →a are in the same direction
deceleration = →v and →a are in opposite directions
what is acceleration due to gravity?
pull of gravity creates acceleration on free falling objects
what is the value for acceleration due to gravity?
9.81 m/s2