A ball is thrown straight upward and rises to a maximum height of 18.0 m above its launch point. at what height above its launch

Question

3 years ago

9

point has the speed of the ball decreased to one-half of its initial value?

1 answer:

slava [35] · Answer 1 · 2021-12-05T20:29:20+03:00

A ball is thrown straight upward and rises to a maximum height of 18.0 m

above its launch point. at what height above its launch point has the

speed of the ball decreased to one-half of its initial value?

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kinematic equation

v^2=u^2-2as; v0=,s=18,a=-10m/s/s

u=root 360

(u/2)^2=u^2-2as

=>s=13.5m