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2015-02-21T15:31:14+08:00

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Example of a projectile motion is when you throw a ball straight upward.
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.. maybe not in all cases. generally, projectile motion is from horizontal or angled initial positions. in what you have described, that ought to be free- fall.
Oh okay. Thanks for the info.
2015-02-21T15:34:54+08:00

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Example In the given picture below, Alice throws the ball to the +X direction with an initial velocity 10m/s. Time elapsed during the motion is 5s, calculate the height that object is thrown and Vy component of the velocity after it hits the ground. 
   Example John kicks the ball and ball does projectile motion with an angle of 53º to horizontal. Its initial velocity is 10 m/s, find the maximum height it can reach, horizontal displacement and total time required for this motion. (sin53º=0, 8 and cos53º=0, 6)  Example In the given picture you see the motion path of cannonball. Find the maximum height it can reach, horizontal distance it covers and total time from the given information. (The angle between cannonball and horizontal is 53º and sin53º=0, 8 and cos53º=0, 6)
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It happens when you throw things horizontally or at an angle that you observe projectile motion. The path it has is called trajectory. Also, free- falling, throwing thing up or things falling down with or without initial velocity, is a special case for projectile motion.