Advertisements
Advertisements
प्रश्न
Four cars A, B, C, and D are moving on a levelled road. Their distance versus time graphs are shown in Fig. 8.2. Choose the correct statement.

विकल्प
Car A is faster than car D.
Car B is the slowest.
Car D is faster than car C.
Car C is the slowest
Advertisements
उत्तर
Car B is the slowest.
As speed, v = `("S"_2 - "S"_1)/("t"_2 - "t"_1)`

For the same time interval (t2 − t1), the distance travelled by cars A, B, C, and D are in the order SC > SD > SA > SB
∴ Car C is the fastest and car B is the slowest.
APPEARS IN
संबंधित प्रश्न
A ball moves on a smooth floor in a straight line with uniform velocity 10 m s-1 for 6 s. At t = 6 s, the ball hits a wall and comes back along the same line to the starting point with the same speed. Draw the velocity-time graph and use it to find the total distance travelled by the ball and its displacement.
Write an expression for the distance S covered in time t by a body which is initially at rest and starts moving with a constant acceleration a.
A body starts with an initial velocity of 10m s-1 and acceleration 5 m s-2. Find the distance covered by it in 5 s.
Copy the following table and fill in the blank spaces.
| Quantity | S.I. Unit | Scalar or Vector |
| Displacement | ___________ | ___________ |
Give the name of the physical quantity that corresponds to the rate of change of displacement.
The table below shows the distance travelled by two vehicles A and B during each second:
| Time (s) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 |
| Distance travelled by A (m) | 0 | 20 | 80 | 180 | 240 | 300 | 360 | 420 |
| Distance travelled by B (m) | 0 | 10 | 40 | 90 | 160 | 250 | 360 | 490 |
Which vehicle is moving with a constant acceleration?
The SI unit of displacement is ______.
Distance is a ______ quantity.
Obtain a relation for the distance travelled by an object moving with uniform acceleration in the interval between 4th and 5th seconds.
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?
