Variation of velocity of particle with time moving along a straight line is illustrated in following

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2.Motion in Straight Line

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The variation of velocity of particle with time moving along a straight line is illustrated in the following figure. The distance travelled by the particle in four seconds is.......$m$

A

$60$

B

$55$

C

$25$

D

$80$

Solution

Area $=$ distance for $v-t-$ curve
$12.5 + 25 + 22.5 + 20 = 80\, m$

Standard 11

Physics

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