Advertisements
Advertisements
प्रश्न
Draw a diagram to show the motion of a body whose speed remains constant, but velocity changes continuously.
Advertisements
उत्तर
A body moving in a circle with constant speed but variable velocity as the velocity of the body at any point is along the tangent to the circle at that point as shown in the figure.
APPEARS IN
संबंधित प्रश्न
Under which condition is the magnitude of average velocity equal to average speed ?
Fill in the following blank with suitable word:
The physical quantity which gives both, the speed and direction of motion of a body is called its……………
State whether speed is a scalar or a vector quantity. Give reason for your choice.
If a bus travelling at 20 m/s is subjected to a steady deceleration of 5 m/s2, how long will it take to come to rest ?
A car is moving along a straight road at a steady speed. It travels 150 m in 5 seconds:
What is its average speed ?
A car travels 100 km at a speed of 60 km/h and returns with a speed of 40 km/h. Calculate the average speed for the whole journey.
A car travels the first 30 km with a uniform speed of 60 km h−1 and the next 30 km with a uniform speed of 40 km h−1. Calculate :
- The total time of journey,
- The average speed of the car.
Write down the type of motion of a body along with the A – O – B of the following distance – time graph.
Give two examples of uniform circular motion from your daily life.
Which of the following figures (Fig. 8.3) represents uniform motion of a moving object correctly?
