Advertisements
Advertisements
Question
Define average velocity and give one example.
Advertisements
Solution
The ratio of the total distance travelled in a specified direction to the total time taken by the body to travel the distance is called average velocity.
Example: If you walk to a campsite 1 km away and then back to your starting point within 1 hour, then your average velocity will be zero because your initial and final position is the same.
APPEARS IN
RELATED QUESTIONS
Abdul, while driving to school, computes the average speed for his trip to be 20 km h−1. On his return trip along the same route, there is less traffic and the average speed is 30 km h−1. What is the average speed for Abdul’s trip?
Name the physical quantity which gives us an idea of how slow or fast a body is moving.
An aircraft travelling at 600 km/h accelerates steadily at 10 km/h per second. Taking the speed of sound as 1100 km/h at the aircraft’s altitude, how long will it take to reach the ‘sound barrier’ ?
A car is moving along a straight road at a steady speed. It travels 150 m in 5 seconds:
How far does it travel in 1 second ?
Give one example of following motion :
Variable velocity
A car moving on a straight path covers a distance of 1 km due east in 100 s. What is velocity of the car?
For the motion with uniform velocity , how is the distance travelled related to the time ?
The velocity-time graph of a moving body is given below in Figure

Total displacement.
The velocity-time graph of a moving body is given below in Figure

The acceleration in parts AB, BC and CD.
Define speed of a body.
