Identify what do graphs shown below indicate ?

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7. MOTION

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Identify what do the graphs shown below indicate ?

Option A

Option B

Option C

Option D

Solution

Graph $(a)$ shows that speed decreases continuously with time. This, therefore, shows constant retardation.

Graph $(b)$ shows that speed first decreases and then increases. Thus, the body show nonuniform retardation first and then non$-$uniform acceleration.

Standard 9

Science

A motor car slows down from $72\, km h ^{-1}$ to $36\, km h^{-1}$ over at distance of $25\, m$. If the brakes are applied with the same force calculate $(i)$ total time in which car comes to rest $(ii)$ distance travelled by it.

medium

Area under velocity$-$time graph is equal to the

easy

Distinguish between terms speed and velocity.

medium

Explain the following type of motion with one example of each

$(i)$ Acceleration is positive

$(ii)$ Acceleration is negative

$(iii)$ Acceleration is zero.

medium

A particle is moving in a circular path of radius $r$. The displacement after half a circle would be :

easy

Identify what do the graphs shown below indicate ?

Solution

Similar Questions

A motor car slows down from $72\, km h ^{-1}$ to $36\, km h^{-1}$ over at distance of $25\, m$. If the brakes are applied with the same force calculate $(i)$ total time in which car comes to rest $(ii)$ distance travelled by it.

Area under velocity$-$time graph is equal to the

Distinguish between terms speed and velocity.

Explain the following type of motion with one example of each $(i)$ Acceleration is positive $(ii)$ Acceleration is negative $(iii)$ Acceleration is zero.

A particle is moving in a circular path of radius $r$. The displacement after half a circle would be :

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Explain the following type of motion with one example of each

$(i)$ Acceleration is positive

$(ii)$ Acceleration is negative

$(iii)$ Acceleration is zero.