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प्रश्न
Give one example of following motion :
Variable velocity
उत्तर
Example of variable velocity: A ball dropped from some height is an example of variable velocity.
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संबंधित प्रश्न
Name the physical quantity which gives us an idea of how slow or fast a body is moving.
In addition to speed, what else should we know to predict the position of a moving body ?
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……………
A train starting from Railway Station attains a speed of 21 m/s in one minute. Find its acceleration.
Which of the quantity-velocity or acceleration-determines the direction of motion?
Give one example of following motion :
Uniform velocity
Arrange the following speeds in increasing order.
10 m s-1, 1 km min-1 and 18 km h-1.
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.
Derive th e equation of motion.
S = ut+ `1/2` at2,
Where the symbols have their usual meanings
