Marie1969
Marie1969 Marie1969
  • 26-02-2021
  • Physics
contestada

How much work has John accomplished by lifting a 2 kg object 4 m?

A 78.4j
B 9.8
C 19.6j
D 39.2j

Respuesta :

Аноним Аноним
  • 26-02-2021

Answer:

Weight= 2kg Height= 4m G= 9.8

We know work done = W= FD

W= (mg)(D)

W= (2*9.8)(4)

W=78.4 joules or 78.4 j

Answer Link

Otras preguntas

Mark the items if they were products that Europeans wanted from the Americas. A. indigo and cochineal B. animal hides C. silver and gold D. grapes and oliv
How did Martin Luther King Jr. Changed the history?
Words with strongly negative or positive meaning are referred to as which? a.ambiguous language b. abstract language c. loaded language  d. concrete langu
What argument is Franklin d. Roosevelt making in this excerpt from his "Four Freedoms" speech? Americans should not assume that they are safe from attack and
The burning of fossil fuels produces a. land pollution. c. acid rain only. b. air pollution only. d. acid rain and air pollution.
a pebble sinks in water a twig floats on top of the water compare the densities of the water the pebble and the twig
What was the main goal of President Lincoln’s Reconstruction plan?
What is the word form to 2,929,146
The Mayans study of astronomy was BEST used to
what was Abraham Lincoln goals.