Advertisements
Advertisements
प्रश्न
A car is moving along a straight road at a steady speed. It travels 150 m in 5 seconds:
What is its average speed ?
उत्तर
We have :
Distance (d) = 150 m
Time (t) = 5s
So, we can calculate average the speed as :
Avearge Speed = `" Total distance travelled"/"time"`
Average Speed for the entire journey :
= `150/5`
= 30 m/s
APPEARS IN
संबंधित प्रश्न
Joseph jogs from one end A to the other end B of a straight 300 m road in 2 minutes 30 seconds and then turns around and jogs 100 m back to point C in another 1 minute. What are Joseph’s average speeds and velocities in jogging?
- from A to B and
- from A to C?
Arrange the following speed in increasing order (keeping the least speed first):
An athlete running with a speed of 10 m/s.
A car is moving along a straight road at a steady speed. It travels 150 m in 5 seconds:
How long does it take to travel 240 m ?
The tip of seconds’ hand of a dock takes 60 seconds to move once on the circular dial of the clock. If the radius of the dial of the clock be 10.5 cm, calculate the speed of the tip of the seconds’ hand of the clock. `("Given" π= 22/7)`.
The velocity-time graph of a moving body is given below in Figure
Displacement in each part AB, BC and CD.
A body moves from rest with uniform acceleration and travels 270 m in 3 s. Find the velocity of the body at 10 s after the start.
Define average velocity and give one example.
Define uniform velocity and give one example.
A body projected vertically up with a velocity of 10 m/s reaches a height of 20 m. If it is projected with a velocity of 20 m/s, then the maximum height reached by the body is:
Distinguish between speed and velocity.
