(i)[3]
Sketch a velocity-time graph to represent the motion.
(ii)[2]
Find how far the lift travels in total.
Mathematics 9709 · AS & A Level · Kinematics of motion in a straight line
Kinematics of motion in a straight line — practice question
A lift starts from rest and increases its speed upwards at $0.9\,\text{m s}^{-2}$ for $3\,\text{s}$. It then continues for $6\,\text{s}$ at a steady speed and, after that, slows with a constant deceleration until it stops in another $4\,\text{s}$.