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15 May, 09:41

A 25 kg rock falls for 2.7 seconds. How many meters tall was the

building?

Assume no air resistance, answer using two place values

+1
Answers (1)
  1. 15 May, 12:16
    0
    35.72 m

    Explanation:

    Given:

    v₀ = 0 m/s

    a = 9.8 m/s²

    t = 2.7 s

    Find: Δx

    Δx = v₀ t + ½ at²

    Δx = (0 m/s) (2.7 s) + ½ (9.8 m/s²) (2.7 s) ²

    Δx = 35.72 m
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