Advertisements
Advertisements
प्रश्न
Which of the quantity-velocity or acceleration-determines the direction of motion?
उत्तर
Velocity determines the direction of motion.
APPEARS IN
संबंधित प्रश्न
What does the path of an object look like when it is in uniform motion?
In addition to speed, what else should we know to predict the position of a moving body ?
Arrange the following speed in increasing order (keeping the least speed first):
A bicycle moving with a speed of 200 m/min.
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 ?
A car is moving on a straight road with uniform acceleration. The speed of the car varies with time as follows :
Time (s) : 0 2 4 6 8 10
Speed (m/s) : 4 8 12 16 20 24
Draw the speed-time graph by choosing a convenient scale. From this graph :
(1) Calculate the acceleration of the car.
(2) Calculate the distance travelled by the car in 10 seconds.
One of the following is not a vector quantity. This one is :
The speed of a car is 72 km h-1. Express it in m s-1.
The velocity-time graph of a moving body is given below in Figure
The acceleration in parts AB, BC and CD.
Write down the type of motion of a body along with the A – O – B of the following distance – time graph.
A motorcyclist drives from A to B with a uniform speed of 30 km h–1 and returns back with a speed of 20 km h–1. Find its average speed.
