Study the speed-time graph of a car given below and answer the questions that follow
$(i)$ What type of motion is represented by $OA$ ?
$(ii)$ What type of motion is represented by $A B$ ?
$(iii)$ What type of motion is represented by $BC$ ?
$(iv)$ What is the acceleration of the car from $O$ to $A$ ?
$(v)$ What is the acceleration of the car from $A$ to $B$ ?
$(vi)$ What is the retardation of car from $B$ to $C$ ?
Study the speed-time graph of a car given below and answer the questions that follow
$(i)$ What type of motion is represented by $OA$ ?
$(ii)$ What type of motion is represented by $A B$ ?
$(iii)$ What type of motion is represented by $BC$ ?
$(iv)$ What is the acceleration of the car from $O$ to $A$ ?
$(v)$ What is the acceleration of the car from $A$ to $B$ ?
$(vi)$ What is the retardation of car from $B$ to $C$ ?
$(i)$ Velocity$-$time graph is a straight line inclined to the time axis from $0$ to $A$. This represents a uniformly accelerated motion.
$(ii)$ Velocity$-$time graph is a straight line parallel to time axis from $A$ to $B$. This represents uniform motion.
$(iii)$ The velocity$-$time graph is a straight line from $B$ to $C$ having a negative slope. This represents a uniformly retarded motion.
$(iv)$ Change in velocity $=40-0=40 m s ^{-1}$
Change in time $=10-0=10 s$
$a=\frac{\text { Change in velocity }}{\text { Change in time }}$
$=\frac{40}{10}=4 m s ^{-2}$
$(v)$ Since motion is uniform $a=0$
$(vi)$ Change in velocity $=0-40$
$=-40 m s ^{-1}$
Change in time $=50-30=20 s$
Similar Questions
Identify what do the graphs shown below indicate ?
Identify what do the graphs shown below indicate ?
Can a particle be accelerated
$(i)$ if its speed is constant ?
$(ii)$ if its velocity is constant ?
Can a particle be accelerated
$(i)$ if its speed is constant ?
$(ii)$ if its velocity is constant ?
Why is the motion of an athlete moving along the circular path an accelerated motion ?
Why is the motion of an athlete moving along the circular path an accelerated motion ?
If the displacement-time graph for a particle is parallel to displacement axis, what is the velocity of the particle ?
If the displacement-time graph for a particle is parallel to displacement axis, what is the velocity of the particle ?
There are 5 houses on a street, $A, B, C, D$ and $E$. For all cases, assume that positions to the right are positive.
$(i)$ Draw a frame of reference with house $A$ as the origin and the positions of houses $B, C, D$ and $E$.
$(ii)$ You live in house $C.$ What is your position relative to house $E$ ?
$(iii)$ What are the positions of houses $A$ and $D$, if house $B$ is taken as the reference point ?
There are 5 houses on a street, $A, B, C, D$ and $E$. For all cases, assume that positions to the right are positive.
$(i)$ Draw a frame of reference with house $A$ as the origin and the positions of houses $B, C, D$ and $E$.
$(ii)$ You live in house $C.$ What is your position relative to house $E$ ?
$(iii)$ What are the positions of houses $A$ and $D$, if house $B$ is taken as the reference point ?