Advertisements
Advertisements
प्रश्न
A body starts from rest with uniform acceleration 2 m s-2. Find the distance covered by the body in 2 s.
Advertisements
उत्तर
Initial velocity u = 0
Acceleration a = 2 m/s2
Time t = 2 s
Let 'S' be the distance covered.
Using the second equation of motion,
S = ut + (1/2) at2
S = 0 + (1/2) (2) (2) 2
S = 4 m
APPEARS IN
संबंधित प्रश्न
The displacement of a moving object in a given interval of time is zero. Would the distance travelled by the object also be zero ? Give reason for your answer.
Is displacement a scalar quantity?
The numerical ratio of displacement to distance for a moving object is :
Clarify the difference.
Distance and displacement
When is the magnitude of displacement equal to the distance?
The following table gives the displacement of a car at different instants of time.
| Time (s) | 0 | 1 | 2 | 3 | 4 |
| Displacement (m) | 0 | 5 | 10 | 15 | 20 |
- Draw the displacement-time sketch and find the average velocity of the car.
- What will be the displacement of the car at (i) 2.5 s and (ii) 4.5 s?
From the displacement-time graph of a cyclist given below in the Figure, find The displacement from the initial position at the end of 10 s,
Copy the following table and fill in the blank spaces.
| Quantity | S.I. Unit | Scalar or Vector |
| Displacement | ___________ | ___________ |
A car travels at a uniform speed of 42 km/h. In 10 minutes, how much distance would it cover?
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 |
Give the value of the velocity at which they are meeting
