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If a body moves in a circle, it starts from point A and after completing the circle comes back to A; the displacement of such body is
Mean solar day = 24 h
= 24 × 60 × 60
= 86400 seconds
Which of the following graphs does not represent constant speed?
In a constant speed the change in position of the body remains the same for a particular interval of time. Break time axis into small parts and see the distance travelled in each of these parts is the same in choices A, B and C (zero in ‘C’). But the distance changes in ‘D’.
Which of the following does not show oscillatory motion?
A jet is moving with a speed of 180 km/h. What is its speed in m/s?
An odometer measures distances.
Distance travelled will be equal to the displacement if
The area of the shaded portion in the graph shown below represents?
The following graph shows the motion of four runners. P, Q, R and S in a 5 km marathon. Whose motion is the fastest?
The time taken by P is the lowest among the four, because more is the area under the wine, greater is the speed. Hence, P is the fastest.
With what speed should a car travel so that it can cover a distance of 5 km in 5 min?
A light year is the distance covered by light in one year, so it is the unit of distance and not of time.
Study the graph given below. How is the speed of the moving body?
Speed is the change of position of the body with respect to time. From the graph it can be seen that the change becomes less with time till there is no change at all i.e. till the speed becomes zero.
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