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25D, Question17. A stone is throne so that it will hit a bird at the top of a pole. However, at the instant the stone is thrown, the bird flies away in a horizontal straight line at a speed of 10m/s. The stone reaches a height double that of the pole and, in its descent, touches the bird...

9. A particle executes SHM. When it is 2cm from its equilibrium position its velocity is 6cm/s: when it is 3cm, its velocity is 4cm/s. Find the period of its motion and the amplitude. 10. If x=asin(nt) + bcos(nt) find the velocity and acceleration of a particle whose displacement from a fixed...

25B page 105 Q15. A particle is brought to top speed with an acceleration which varies linearly as the distance traveled. It starts from rest with an acceleration of 3m/s^2 and reaches top speed in a distance of 160m. Find:a) the top speed, b) the speed when the particle has moved 80m. Q16. A...

Explain why it is that the vertical and horizontal components of a projectile's motion are independent of each other.