Advertisements
Advertisements
प्रश्न
The figure represents graphically the velocity of a car moving along a straight road over a period of 100 hours.
Calculate the distance travelled in the last 40 h.
Advertisements
उत्तर

Distance travelled in last 40 hour would be equal to area under graph during that time = 50 x (100 - 60) + `1/2`x(100 - 60) x(100 - 50).
S = 2000 + 1000 = 3000 km.
APPEARS IN
संबंधित प्रश्न
Which of the following is true for displacement?
- It cannot be zero.
- Its magnitude is greater than the distance travelled by the object.
Explain the following concept in your own words with everyday examples:
Distance
Copy the following table and fill in the blank spaces.
| Quantity | S.I. Unit | Scalar or Vector |
| Displacement | ___________ | ___________ |
Can a body have negative displacement?
A particle is moving in a circular path of radius r. The displacement after half a circle would be
Displacement / Time : Velocity :: Speed / Time : ______.
Exercise Problems.
An athlete completes one round of a circular track of diameter 200 m in 40 s. What will be the distance covered and the displacement at the end of 2 m and 20 s?
Distance travelled by a body in a given time ______.
Is displacement a scalar quantity?
A body is projected up with an initial velocity of u m/s. It goes up to a height, ‘h’ meters in seconds' time. Then it comes back at the point of projection.
Considering negligible air resistance, which of the following statement is true?
