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प्रश्न
Name the physical quantity which gives us an idea of how slow or fast a body is moving.
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उत्तर
Speed gives an idea of how slow or fast a body is moving.
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संबंधित प्रश्न
What does the path of an object look like when it is in uniform motion?
State whether speed is a scalar or a vector quantity. Give reason for your choice.
Write the formula for acceleration. Give the meaning of each symbol which occurs in it.
A motorcyclist drives from place A to B with a uniform speed of 30 km h-1 and returns from place B to A with a uniform speed of 20 km h-1. Find his average speed.
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:
What is its average speed ?
The diagram below shows the pattern of the oil on the road at a constant rate from a moving car. What information do you get from it about the motion of the car.
A car moving on a straight path covers a distance of 1 km due east in 100 s. What is the speed of the car?
Define variable velocity and give one example.
Define uniform velocity and give one example.
