State the type of motion represented by the given graph.
Uniform motion.
The distance$-$time graph of a body is parallel to time axis. The body is
A train is travelling at a speed of $90\, km h ^{-1}$. Breaks are applied so as to produce a uniform acceleration of $0.5\, m s ^{-2}$. Find how far the train will go before it is brought to rest.
$(a)$ Differentiate between distance and displacement.
$(b)$ Under what conditions is the magnitude of average velocity of an object equal to its average speed ?
A car manufacturer advertises that the brakes are so perfect that the car stops instantaneously. Comment.
A train $100 \,m$ long is moving with a velocity of $60\, km h^{-1}$. Find the time it takes to cross the bridge $1\, km$ long.
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