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7. MOTION
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A body moving with uniform acceleration has velocities $20 \,m s ^{-1}$ and $30\, m s ^{-1}$. when passing two points $A$ and $B$. Then the velocity midway between $A$ and $B$ is
A
$25.5 \,m s ^{-1}$
B
$25 \,m s ^{-1}$
C
$24\, m s ^{-1}$
D
$10 \sqrt{6}\, m s ^{-1}$
Solution
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Standard 9
Science
Similar Questions
Using following data, draw time-displacement graph for a moving object :
| Time $(s)$ | $0$ | $2$ | $4$ | $6$ | $8$ | $10$ | $12$ | $14$ | $16$ |
| Displacement $(m)$ | $0$ | $2$ | $4$ | $4$ | $4$ | $6$ | $4$ | $2$ | $0$ |
Use this graph to find average velocity for first $4\,\sec $, for next $4\,\sec $ and for last $6\,\sec $.
medium
