Four speed$-$time graphs are shown below
Which graph represents the following case ?
$(i)$ A ball thrown vertically upwards and returning to the hand of the thrower ?
$(ii)$ A body decelerating to a constant speed and then accelerating.
Four speed$-$time graphs are shown below
Which graph represents the following case ?
$(i)$ A ball thrown vertically upwards and returning to the hand of the thrower ?
$(ii)$ A body decelerating to a constant speed and then accelerating.
$(i)$ Graph $(a)$ represents this case. The ball starts with initial velocity; experiences retardation and its velocity decreases to become zero at the highest point. Thereafter the ball falls down and its velocity increases till it again becomes equal to the initial velocity of throw.
$(ii)$ Graph $(d)$ shows the case of a body decelerating to a constant speed and then accelerating.
Similar Questions
The following displacement $-$ time graph shows the positions of a body at different times, Calculate the velocity of the body as it moves from : $(i) A-B \,(i i) B-C$ $(iii)$ $C-D$.
The following displacement $-$ time graph shows the positions of a body at different times, Calculate the velocity of the body as it moves from : $(i) A-B \,(i i) B-C$ $(iii)$ $C-D$.
The position$-$time graph for the motion of a car is given below
$(i)$ How far the car tavelled in the time interval $2$ to $6 s ?$
$(ii)$ During which interval of time its speed was more?
$(iii)$ Calculate the average speed of the car.
The position$-$time graph for the motion of a car is given below
$(i)$ How far the car tavelled in the time interval $2$ to $6 s ?$
$(ii)$ During which interval of time its speed was more?
$(iii)$ Calculate the average speed of the car.
An athlete completes one round of a circular track of diameter $49 \,m$ in $20 \,s$. Calculate the distance covered and displacement at the end of $30 \,s$.
An athlete completes one round of a circular track of diameter $49 \,m$ in $20 \,s$. Calculate the distance covered and displacement at the end of $30 \,s$.
The following table shows the positive of Renu, while she is going to her school. Draw distance$-$time graph for her motion.
Time
Distance from her home $( k m )$
$06: 45\, am$
$0$
$07: 00 \,am$
$8$
$01: 30\, pm$
$8$
$01: 45\, pm$
$0$
The following table shows the positive of Renu, while she is going to her school. Draw distance$-$time graph for her motion.
| Time | Distance from her home $( k m )$ |
| $06: 45\, am$ | $0$ |
| $07: 00 \,am$ | $8$ |
| $01: 30\, pm$ | $8$ |
| $01: 45\, pm$ | $0$ |
A cyclist driving at $5\, m s ^{-1}$ picks a velocity of $10\, m s ^{-1}$ over a distance of $50\, m$. Calculate $(i)$ acceleration $(ii)$ time in which the cyclist picks up the above velocity.
A cyclist driving at $5\, m s ^{-1}$ picks a velocity of $10\, m s ^{-1}$ over a distance of $50\, m$. Calculate $(i)$ acceleration $(ii)$ time in which the cyclist picks up the above velocity.