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

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

Juan is thinking of two numbers. He says that 3 times the first number minus the second number is 118. In addition, two times the first number plus the second n

What particles make up the nucleus of an atom?

What are the unit rates for 4/8 , 5/25, 36/6, 14/21, 18/30, 28/16, 56/35, 45/108, 12/42, 39/26

98 divided by 7 please show how

What are the unit rates for 4/8 , 5/25, 36/6, 14/21, 18/30, 28/16, 56/35, 45/108, 12/42, 39/26

-2n-h(4rx-6s)-3rx+3s i need help doing this problem

Juan is thinking of two numbers. He says that 3 times the first number minus the second number is 118. In addition, two times the first number plus the second n

98 divided by 7 please show how

Find the slope of the ski run that descends 15 feet for every horizontal change of 24 feet

98 divided by 7 please show how