Answer:
23 m/s
Explanation:
First, find the time it takes for the car to fall 40 meters.
y = y₀ + v₀ t + ½ at²
0 = 40 + (0) t + ½ (-9.8) t²
0 = 40 − 4.9 t²
t = 2.89 s
Next, find the velocity needed to travel 65 meters in that time.
x = x₀ + v₀ t + ½ at²
65 = 0 + v₀ (2.89) + ½ (0) (2.89)²
v₀ = 22.75 m/s
Rounding to two significant figures, the car's initial speed was 23 m/s.
Answer:
kg
Explanation:
kg you just move up and down the stairs
What the question for this assessment
Answer:
The answer is A
Explanation:
The octopus’s tentacle keeps moving right after it is bitten off
Answer:
Nobel gases
Explanation:
Well since Krypton is in a group called the “Noble Gases”, then Krypton is similar to the others; Xenon, Helium, Neon, Argon, and Radon.