$(i)$ What can be depicted from the graph regarding the motion of the object ?
$(ii)$ Find the value of acceleration from the graph.
$(i)$ What can be depicted from the graph regarding the motion of the object ?
$(ii)$ Find the value of acceleration from the graph.
$(i)$ Uniformly retarded motion.
$(ii)$ Acceleration $=$ Slope of the graph
$=\frac{(0-50) ms ^{-1}}{(40-0) s }=\frac{-50}{40} m s ^{-2}$
$=-125 m s ^{-2}$
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