Aflowerpot falls off a balcony 85m above the street how long does it take to hit the ground

It will take 4.12 s for the flowerpot to fall to the ground.

From the question given above, the following data were obtained:

Height (h) = 85 m

NOTE: Acceleration due to gravity (g) = 10 m/s²

The time taken for the flowerpot to fall to the ground can be obtained as follow:

85 = ½ × 10 × t²

85 = 5 × t²

Divide both side by 5

Take the square root of both side

Therefore, it will take 4.12 s for the flowerpot to fall to the ground.

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d

explanation:

v=uf/(u-f)

= 5.10/(5-10) convex lens has positive focal length

=50/-5

=-10 cm (formed at other side)