Mackenziesova Mackenziesova

11-02-2015
Physics

Answered

a ball is dropped from rest at a height of 80 m above the ground. what is the speed just as it hits the ground?

Answer :

12-02-2015

Δx=Vi(t)+.5at²
Δx=80
a=9.8
Vi=0 since its from rest, the initial velocity is 0.
80=0+.5(9.8)t²
t=16.33
You can use one of the big five equations: Vf=Vi+at
Vf=0+9.8(16.33)
Vf=160.034 m/s

Answer Link

Other Questions

write a literature review about the Mandera basin

Aristotle's The Politics outlines many themes- namely Aristotle's beliefs about how government and society should be run. Select one: True False

On the coordinate plane, the segment from N( – 6, – 4) to O( – 3, – 7) forms the hypotenuse of isosceles right triangle NOP. Find the perimeter of △NOP.

0.9999 to 3 sf please help me I dont understand

1.2.3. How can discussions, projects, campaigns, and events support victims of human rights violations Based on water scarcity.

What is the definition of "absolute advantage"? Select one: O a. The ability of one country to use its resources to make a product or service more efficiently t

3. For Dalmatian dogs, the spotted condition is dominant over non- S spotted. (a) Using a Punnett square, show the results of a cross between two heterozygous p

Do my homework of mathemathic

16. Describe the use of filters in the infusion of solutions and blood products.

Round to 2 decimal places 3. Analyze: The function h(t) = 8t + 9 models the height, in feet, of a cat t seconds after it jumps. What is the maximum height of th