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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 name is given to the speed in a specified direction ?
Name the physical quantity obtained by dividing ‘Distance travelled’ by ‘Time taken’ to travel that distance.
A train starting from Railway Station attains a speed of 21 m/s in one minute. Find its acceleration.
A motorcyclist starts from rest and reaches a speed of 6 m/s after travelling with uniform acceleration for 3 s. What is his acceleration ?
A ball hits a wall horizontally at 6.0 m s-1. It rebounds horizontally at 4.4 m s-1. The ball is in contact with the wall for 0.040 s. What is the acceleration of the ball ?
Give one example of a motion where an object does not change its speed but its direction of motion changes continuously.
Figure shows the displacement of a body at different times .
Calculate the velocity of the body as it moves for time interval :
(i) 0 to 5 s,
(ii) 5 s to 7 s
(iii) 7 s to 9 s.
The velocity-time graph of a moving body is given below in Figure
Displacement in each part AB, BC and CD.
The velocity-time graph of a moving body is given below in Figure
The acceleration in parts AB, BC and CD.
How many variables are present in each equation of motion?
