Maximum range of a projectile is 1.6 m. Then the velocity of projection will be. (g=10m/s)

Need in all of themmm only answer if you know pls

An object is 10 cm from the mirror, its height is 1 cm and the focal length is 5 cm. what is the image height? (indicate the object orientation by including the + or - sign with the answer.) hi = cm +1 -1 +10 -10

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