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7. MOTION
easy
If the average velocity of a body is equal to mean of its initial yelocity and final velocity, then the acceleration of the body is
A
uniform
B
variable
C
zero
D
negative
Solution
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Standard 9
Science
Similar Questions
medium
A truck is moving on a straight road with uniform acceleration. The following table gives the speed of the truck at various instants of time.
Speed $\left(m s^{-1}\right)$ | $5$ | $10$ | $15$ | $20$ | $25$ | $30$ |
Time $(s)$ | $0$ | $10$ | $20$ | $30$ | $40$ | $50$ |
Draw the speed-time graph by choosing a convenient scale. Determine from it
$(i)$ the acceleration of truck
$(ii)$ the distance travelled by the truck in $50$ seconds.
medium
medium