asharaadam asharaadam

12-01-2022
Physics

contestada

A cricket ball is dropped from a height of 20 m. Calculate: a) the speed of the ball. b) the time it takes to fall through this height

Respuesta :

MuhammadZunair MuhammadZunair

12-01-2022

Answer:

Initial velocity is 0 .. ( since it is just dropped)

now using V²= u² +2gh

=> (Vfinal)² = 0+2*10*20

=> v² = 20*20 = 400

=> v = √400 = 20m/s

for time taken

use V = u+gt

=> t = V/g = 20/10 = 2sec

Answer Link

Otras preguntas

What is the equivalent of binary number 100 in base 10?

What’s something you do to have good emotional health

Please answer ASAP. 10 points. Mathematics

The name given to the change of state from gas to liquid is

Limited contact between many of the states made it difficult for them to define the _______ that the government needed to work toward. Taxes Military Structure

What variables can affect the number of eggs laid by a chicken?

Why Is it important to have a control group in an experimental investigation

How to multiply fractions

Conjugate the verb correctly in Spanish in the present tense. Be sure to only write the conjugated verb. Do not rewrite the entire sentence. Marcos y María (bai

What are three characteristics of matter do chemists study?