leannawalton3130 leannawalton3130
  • 25-05-2021
  • Physics
contestada

A ball is released from a height of 20 metres. Calculate; 1. The time it takes to fall 2. The velocity with which it hits the ground

Respuesta :

PiaDeveau PiaDeveau
  • 27-05-2021

Answer:

Final velocity of ball = 20 m/s

Explanation:

Given:

Height when ball released = 20meter

Find;

Time taken to fall

Final velocity of ball

Computation:

Initial velocity of ball = 0 m/s

Acceleration due to gravity = 10 m/s²

Using equation of motion;

S = ut + (1/2)(g)(t²)

20 = (0)(t) + (1/2)(10)(t²)

20 = 5(t²)

(t²) = 20 / 5

(t²) = 4

Time taken to fall = 2 second

V = u + at

V = 0 + (10)(2)

Final velocity of ball = 20 m/s

Answer Link

Otras preguntas

Why did the entertainment industry grow significantly after World War I? People wanted an escape in difficult economic times, and entertainment had previously b
How do the owners of a partnership relate to the​ business? a. the owners and the business are not separate legal entities. b. the assets of the owners are cons
Equation: y= -0.25x+1 After how many minutes is the timer 25% full?
Those hues on the side of the color wheel containing green and blue are all ____ hues
Why is binge drinking more problematic for women than men?
Enter an inequality that represents the description, and then solve. Dave has $10 to spend on a $7 book and two birthday cards (c) for his friends. How much c
BRAINLIESTTTTTT ASAPPPP PLEASE ANSWER MY QUESTION
Why can't a cell from a mullticellular organism survive on its own?
Solve the equation. −t/4=−3π
Blood enters the pulmonary vein with close blank of the blinding site for oxygen saturated