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Kinematic of the particles moving in a straight line

A ball is projected vertically upwards, from a point X which is 7m above the ground, with speed 21m/s². Find the time of the flight of the ball.
You can use the suvat equations for this

Taking upwards as positive:

s = -7
u = 21
a = -9.8

You can do the rest
(edited 7 years ago)
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Notnek
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Original post by bendent1234
...

Full solutions are against the rules of this forum. Please continue to help students with hints and guide them towards answers :smile:
(edited 7 years ago)
Original post by notnek
Full solutions are against the rules of this forum. Please continue to help students with hints and guide them towards answers :smile:


Sorry, I have edited it now

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