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kifflom [539]
3 years ago
12

An object is dropped from a platform100 ft high. Ignoring wind resistance, what will its speed be when it reaches the ground?

Physics
1 answer:
sweet-ann [11.9K]3 years ago
4 0

Answer:

80 ft/s

Explanation:

Given:

Δy = 100 ft

v₀ = 0 ft/s

a = 32.2 ft/s²

Find: v

v² = v₀² + 2aΔx

v² = (0 ft/s)² + 2 (32.2 ft/s²) (100 ft)

v = 80.2 ft/s

Rounded, the speed when it reaches the ground is 80 ft/s.

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For the second car we also use tangent; the distance from the point on the highway below the plane will be; 
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The we can add the two distances to get how far apart the cars are;
7088.37 + 3473.72 = 10562.09 feet. 
= 10562.09 ft
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