69angel69
69angel69 69angel69
  • 21-10-2019
  • Physics
contestada

From what height should you drop a ball if you want it to
hit the ground in exactly 3 seconds?

Respuesta :

MathPhys
MathPhys MathPhys
  • 21-10-2019

Answer:

44.1 m

Explanation:

Given:

v₀ = 0 m/s

a = -9.8 m/s²

t = 3 s

Find: Δy

Δy = v₀ t + ½ at²

Δy = (0 m/s) (3 s) + ½ (-9.8 m/s²) (3 s)²

Δy = -44.1 m

The ball should be dropped from 44.1 meters.

Answer Link

Otras preguntas

How do you know when to use the subtraction property of equality as a reason as opposed to subtraction of real numbers?
what does this excerpt most suggest about the beliefs of ancient greeks
The amounts of plastic waste generated in a region during two years were 32,400,000 tons and 20,300,000 tons. What was the total plastic waste generated over th
At the beginning of the tempest, the boatswain orders antonio and gonzalo, both of whom are higher up in the social order than the boatswain, to stay below deck
If the root amor means “love,” what does the word amorous mean?
Which equation best represents this situation? the number 84 increased by an unknown number is equal to 115.
Why the World War 2 started
where PKKN SUNGAI BULOH
Hook was the first to describe microorganisms accurately. true false
0.00105 liters is the same as cm3 and mL