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What does the odometer of an automobile measures ? Which of the following is moving faster ? Justify your answer.
$(i)$ A scooter moving with a speed of $300\, m$ per minute.
$(ii)$ A car moving with a speed of $36 \,km$ per hour.
Solution
Odometer of an automobile measures the distance travelled by the automobile from its origin or between two stations.
$(i)$ $300 m$ per minute $=300 / 60=5 m s ^{-1}$
$(ii)$ $36 km$ per hour $=36 \times 5 / 18=10 m s ^{-1}$
$5 m s ^{-1}<10 m s ^{-1}$
$300 m$ per minute $< 36 km$ per hour.
Hence, car moves faster
Similar Questions
An object is moving along a straight line with uniform acceleration. The following table gives the velocity of the object at various instants of time
| Time $(s)$ | $0$ | $1$ | $2$ | $3$ | $4$ | $5$ | $6$ |
| Velocity $\left( m s ^{-1}\right)$ | $2$ | $4$ | $6$ | $8$ | $10$ | $12$ | $14$ |
Plot the graph.
From the graph.
$(i)$ Find the velocity of the object at the end of $2.5 sec$
$(ii)$ Calculate the acceleration.
$(iii)$ Calculate' the distance covered in the last $4$ sec.
