Difficulty: Easy
Correct Answer: 3.33 km (approximately)
Explanation:
Given data
Step 1: Time of fallh = (1/2) g t² ⇒ t = √(2h/g) = √(2 × 1960 / 9.8) = √400 = 20 s
Step 2: Horizontal distanceRange R = v × t = 166.67 × 20 = 3333.4 m ≈ 3.33 km
VerificationUnits consistent; height chosen to make t an integer (20 s), confirming the arithmetic.
Final Answer3.33 km (approximately)
Discussion & Comments