Answer to Question #89728 in Physics for Nathaniel Brima Vandi

Question

(1) A stone is thrown obliquely upwards with the output speed 25m / s from a point 1.5m above ground level. The throwing height of the bow is 26.0m above the ground. how big is the stone's speed when it passes the highest point? we ignore the air resistance.
(2) A stone is thrown obliquely upwards with the throw angle 30degree relative to the horizontal plane. the highest point of the path after 0.15s. At what speed was the stone thrown
(3) A ball is thrown obliquely upward with the initial speed 12m / s and with the elevation angle 42 degrees. what speed does the ball have after 0.18s?
(4) A ball is pushed up as shown in the figure. after how long did it reach its highest point? (CP Komvux April 1991)

Answer 1

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