Chapter 2: Motion in a Straight Line — Picture questions (exam style)

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A body is projected from the top of a 80 m building from rest (g = 10 m s⁻²). Which option is correct?

time to reach ground = 4 s, impact speed = 20 m/s, max height above ground = 80 m

time to reach ground = 4 s, impact speed = 40 m/s, max height above ground = 80 m

time to reach ground = 8 s, impact speed = 40 m/s, max height above ground = 80 m

time to reach ground = 5 s, impact speed = 40 m/s, max height above ground = 80 m