What type of motion is represented by following graphs ?

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7. MOTION

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What type of motion is represented by the following graphs ?

Option A

Option B

Option C

Option D

Solution

$(i)$ Velocity$-$time graph is a straight line inclined equally towards the speed and time aids. Therefore, it represents uniformly accelerated motion.

$(ii)$ Velocity$-$time graph is a straight line parallel to the time axis. It represents uniform motion.

$(iii)$ Velocity$-$time graph is a straight line having a negative slope. It represents uniformly retarded motion.

$(iv)$ Velocity$-$time graph is a curve having a negative slope. It represents non-uniformly retarded motion

Standard 9

Science

Draw the distance$-$time graph for the following situations

$(a)$ When a body is stationary.

$(b)$ When a body is moving with a uniform speed.

$(c)$ When a body is moving with non$-$uniform speed.

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What can you say about the motion of an object whose distance time graph is

$(i)$ a straight line, parallel to the time axis ?

$(ii)$ a straight line passing through the origin making an angle with the time axis ?

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A car is moving on a straight road with uniform acceleration. The following table gives the speed of the car at various instants of time.

Time $(s)$ $0$ $10$ $20$ $30$ $40$ $50$

Speed $\left(m s^{-1}\right)$ $5$ $10$ $15$ $20$ $25$ $30$

$(i)$ Draw the speed$-$time graph representing the above set of observations.

$(ii)$ Find the acceleration of the car.

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A motor bike running at $5\, m s ^{-1}$, picks up a velocity of $30\, m s ^{-1}$ in $5\, s$. Calculate $(i)$ acceleration $(ii)$ distance covered during acceleration.

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The velocity$-$time graph of a truck is plotted below

$(a)$ Calculate the magnitude of displacement of the truck in $15$ seconds.

$(b)$ During which part of the journey was the truck decelerating ?

$(c)$ Calculate the magnitude of average velocity of the truck.

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Time $(s)$	$0$	$10$	$20$	$30$	$40$	$50$
Speed $\left(m s^{-1}\right)$	$5$	$10$	$15$	$20$	$25$	$30$

What type of motion is represented by the following graphs ?

Solution

Similar Questions

Draw the distance$-$time graph for the following situations $(a)$ When a body is stationary. $(b)$ When a body is moving with a uniform speed. $(c)$ When a body is moving with non$-$uniform speed.

What can you say about the motion of an object whose distance time graph is $(i)$ a straight line, parallel to the time axis ? $(ii)$ a straight line passing through the origin making an angle with the time axis ?

A motor bike running at $5\, m s ^{-1}$, picks up a velocity of $30\, m s ^{-1}$ in $5\, s$. Calculate $(i)$ acceleration $(ii)$ distance covered during acceleration.

The velocity$-$time graph of a truck is plotted below $(a)$ Calculate the magnitude of displacement of the truck in $15$ seconds. $(b)$ During which part of the journey was the truck decelerating ? $(c)$ Calculate the magnitude of average velocity of the truck.

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Draw the distance$-$time graph for the following situations

$(a)$ When a body is stationary.

$(b)$ When a body is moving with a uniform speed.

$(c)$ When a body is moving with non$-$uniform speed.

What can you say about the motion of an object whose distance time graph is

$(i)$ a straight line, parallel to the time axis ?

$(ii)$ a straight line passing through the origin making an angle with the time axis ?

The velocity$-$time graph of a truck is plotted below

$(a)$ Calculate the magnitude of displacement of the truck in $15$ seconds.

$(b)$ During which part of the journey was the truck decelerating ?

$(c)$ Calculate the magnitude of average velocity of the truck.