Write true or false for the following statements
A quantitv which can be represented completely by magnitude alone is called a vector quantity.
False
The distance$-$time graph of a body is a straight line inclined to time axis. The body is in
If the displacement-time graph for a particle is parallel to displacement axis, what is the velocity of the particle ?
What is meant by free fall ? Two bodies, one of mass $1\,g$ and other of mass $1\, kg$ are dropped from the same height in vacuum. Compare the two time intervals in which the two bodies will hit the ground.
$(a)$ Differentiate between distance and displacement.
$(b)$ Under what conditions is the magnitude of average velocity of an object equal to its average speed ?
An aeroplane lands at $216\, km\, h ^{-1}$ and stops after covering a runway of $2\, km .$ Calculate the acceleration and the time, in which its comes to rest.
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