Explain the following type of motion with one example of each
$(i)$ Acceleration is positive
$(ii)$ Acceleration is negative
$(iii)$ Acceleration is zero.
Explain the following type of motion with one example of each
$(i)$ Acceleration is positive
$(ii)$ Acceleration is negative
$(iii)$ Acceleration is zero.
$(i)$ Here, the motion is accelerated motion. A car moving on a road with increasing velocity
$(ii)$ Here, the motion is retarded motion. Brakes applied to a moving car.
$(iii)$ Here, the motion is uniform motion. Motion of the second's hand a clock.
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The speed$-$time graph of a body is a straiaht line parallel to time axis. The body has
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$(b)$ A car accelerates uniformly from $18\, km h ^{-1}$ to $36\, km h^{-1}$ in $5$ seconds. Calculate the acceleration and the distance covered by the car in that time.
$(a)$ Derive second equation of motion $S=u t+\frac{1}{2} a t^{2}$ graphically where the symbols have their usual meanings.
$(b)$ A car accelerates uniformly from $18\, km h ^{-1}$ to $36\, km h^{-1}$ in $5$ seconds. Calculate the acceleration and the distance covered by the car in that time.
What kind of motion of a body is represented by the graphs given below ?
What kind of motion of a body is represented by the graphs given below ?