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a. Define projectile motion.

b. Show that the path of projectile fired horizontally from the top is parabolic. Also, find the expression for velocity of projectile at any instant.

c. At what point velocity and acceleration of above mentioned projectile are perpendicular?

d. A projectile is fired with a speed of 30 m/s in a direction 30° above horizontal.
Calculate:
i. Position of projectile after time t=3sec
ii.The horizontal range​

Sagot :

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