Timework19
Refer to the data below and answer the questions that follow.
The variation in the speed of a car on a particular day at the respective times is shown in the table below:
| s(km/hr) | 0 | 40 | 50 | 85 | 10 | 10 |
| t(hr) | 11.00 am | 11.30 am | 1.00 pm | 1.30 pm | 3.30 pm | 4.30 pm |
0. What is the distance travelled by the car from 11 a.m. to 1 p.m.?
- Option : B
- Explanation : Graph of speed vs time is plotted as shown. Area
under the graph and time axis gives the distance.
Required distance
= A(ΔOAP) + A(ΔBXA) + A(▢APQX)
= 7.5 km.
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