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.
पर्याय
Car A is faster than car D.
Car B is the slowest.
Car D is faster than car C.
Car C is the slowest
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
Clarify the difference.
Distance and displacement
Figure shows the displacement-time graph of two vehicles A and B moving along a straight road. Which vehicle is moving faster? Give reason.
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.
When brakes are applied to a bus, retardation produced is 25 cm s-2 and the bus takes 20 s to stop. Calculate -
- The initial velocity of the bus
- The distance travelled by bus during this time.
A car covers 90 km in `1 1/2` hours towards east. Calculate
- displacement of car,
- its velocity in (a) kmh−1 (b) ms−1.
Can you suggest the kind of motion of a body from the following distance – time graph?
A 50 m long train passes over a bridge at a speed of 30 km/h. If it takes 36 seconds to cross the bridge, calculate the length of the bridge.
Give one example where the displacement is zero but the distance travelled is not zero.
A body moves is a circle of radius ‘2R’ what is the distance covered and displacement of the body after 2 complete rounds?
If the displacement-time graph of a particle is parallel to the time axis, the velocity of the particle is ______.
