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  1. Take downwards as +VE. The above calculations consider the downwards journey where the boy returns...

  2. Consider a radius R that is at an angle a above the horizotnal axis through P The small arc on the semi-circle subtebded by...

  3. Let h be the height of the table above the floor, and v be the projecting speed of the ball. On earth: ...

  4. ...right angle triangle is oriented with side AB vertical with A above B, BC is the base (horizontal). Under the orientation ...

  5. ... taken into account. 2. In the tradiational convention, areas above the time axis (i.e. +ve displacement) indicates displacement towards the left, whereas...

  6. ...conservation of momentum initial momentum = mu final momentum = mv1+2mv2 u = v1 +2v2 using above forumla, eliminating ans A conservation of kinetic energy: final energy...

  7. The pressure given by the trapped air above the mercury column in the barometer = (750 - 740) mmHg = 10 mmHg ...

  8. ...s⁻² Take downward quantities as positive. Let h m above the ground be the height of the balls meet in air. Ball ...

  9. ...at "H"; to the terminal planform. "H"; is 30 m above the terminal platform (vertically). Track provides friction of 300 N...

  10. It is because the water at the bottom is under compression by water above it. This causes the water to become more dense, i.e. water ...