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When an object falls freely to the groun...

When an object falls freely to the ground, its acceleration is uniform.

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An iron ball of mass 3 kg is released from a height of 125 m and falls freely to the ground. Assuming that the value of g is 10 m//s^(2) , calculate time taken by the ball to reach the ground

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CHETANA PUBLICATION-LAWS OF MOTION-EXAMPLE
  1. Give formula: Final velocity^2 (v^2) =

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  2. Give formula: velocity of an object moving with uniform circular motio...

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  3. When an object falls freely to the ground, its acceleration is uniform...

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  4. Give scientific reasons: Even though the magnitudes of action force a...

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  5. Give scientific reasons: It is easier to stop a tennis ball as compare...

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  6. Give scientific reasons: The velocity of an object at rest is consider...

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  7. Motion is relative.

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  8. Newton's first law of motion is called as law of inertia. OR

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  9. The launching of a rocket is based on Newton's third law of motion

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  10. An athlete is running on a circular track. He runs a distance of 400 m...

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  11. Solve the following examples: (numerical problems) A person swims 100...

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  12. Solve the following examples: (numerical problems) An object moves 18...

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  13. An aeroplane taxies on the runway for 30 s with an acceleration of 3.2...

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  14. A kangaroo can jump 2.5 m vertically. What must be the initial velocit...

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  15. A motorboat starts from rest and moves with uniform acceleration, if i...

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  16. The mass of a cannon is 500 kg and it recoils with a speed of 0.25 m//...

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  17. Explain the three different ways to change the velocity

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  18. Explain what is positive, negative and zero acceleration.

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  19. What inference do we draw from the velocity¬ time graph for a uniforml...

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  20. State the three equations of motion and give the relationship explaine...

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