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  3. 1) a ball is thrown from the top of a roof at an a

1) A ball is thrown from the top of a roof at an angle of...

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Physics

1) A ball is thrown from the top of a roof at an angle of 20 owith respect to the vertical. 1 s later a ball is dropped from thetop of the roof

a) If the height of the roof is 20 m, determine the velocitywith which the first ball must be thrown in

order for both balls to land at exactly the same time.

b) Imagine the velocity of the first ball is now known, andinstead it is the height of the building which

is unknown. Can you obtain an equation for the height of thebuilding which would result in both balls

landing on the floor at the same time

Answer & Explanation Solved by verified expert
3.6 Ratings (270 Votes)
a consider the motion of ball dropped distance travelled d 20 m initial velocity Vi 0 ms acceleration a g 98 ms2 time taken t Using the kinematics equation d Vi t 05 a t2 inserting the    See Answer
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