1.

A stone droped from point A from certain height on a ground, takes 3 seconds to reach to the ground, the velocity with whites to the groundwill beOptionsO 44.145 m/s29.43 m/sO 0 m/sO 3 m/sWebCam​

Answer»

ANSWER:

v=90m/s

h=45m

Step-by-step EXPLANATION:

t=3sec.

u=0m/s

a=g=10m/s

v=u+gt

v=0+10×3²

v=10×9

v=90m/s

h=ut+½gt²

h=0×3+½×10×3²

h=0+5×9

h=45m

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