This topic contains a solution. Click here to go to the answer
« previous next »

Author Question: An object of mass 4 kg is thrown vertically upwards from ground level with an initial speed of 20 ... (Read 152 times)

leo leo

  • Hero Member
  • *****
  • Posts: 566
on: Jul 29, 2018
An object of mass 4 kg is thrown vertically upwards from ground level with an initial speed of 20 m/s. Ignore friction and use g = 10 m/s2. What is the kinetic energy of the object just before it hits the ground?
 
  A) 800 J
  B) 400 J
  C) 0 J
  D) 100 J
  E) 200 J

Question 2

An object is moving with constant non-zero velocity in the +x-axis. The position versus time graph of this object is
 
  A) a horizontal straight line.
  B) a vertical straight line.
  C) a straight line making an angle with the time axis.
  D) a parabolic curve.
  E) a hyperbolic curve.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

djpooyouma

  • Sr. Member
  • ****
  • Posts: 325
Reply #1 on: Jul 29, 2018
Answer to Question 1

A

Answer to Question 2

C


leo leo

  • Member
  • Posts: 566
Reply 2 on: Jul 29, 2018
Thanks for the timely response, appreciate it

Kedrick2014

  • Member
  • Posts: 359
Reply 3 on: Yesterday
Excellent

« previous next »
 

Did you know?

Eat fiber! A diet high in fiber can help lower cholesterol levels by as much as 10%.

Did you know?

Opium has influenced much of the world's most popular literature. The following authors were all opium users, of varying degrees: Lewis Carroll, Charles, Dickens, Arthur Conan Doyle, and Oscar Wilde.

Did you know?

Only one in 10 cancer deaths is caused by the primary tumor. The vast majority of cancer mortality is caused by cells breaking away from the main tumor and metastasizing to other parts of the body, such as the brain, bones, or liver.

Did you know?

Signs and symptoms of a drug overdose include losing consciousness, fever or sweating, breathing problems, abnormal pulse, and changes in skin color.

Did you know?

The first-known contraceptive was crocodile dung, used in Egypt in 2000 BC. Condoms were also reportedly used, made of animal bladders or intestines.

Whenever a vehicle is raised off the ground, a safety stand should be placed under the frame, axle, ... Whenever a vehicle is raised off the ground, a safety stand should be placed under the frame, axle, ...
Upper-Level Maps Upper-Level Maps
How much the temperature will rise depends on many factors that affect the level of GHG emission How much the temperature will rise depends on many factors that affect the level of GHG emission
The Nile Delta will be strongly affected by a rise in sea level of 50 cm The Nile Delta will be strongly affected by a rise in sea level of 50 cm
Sea-Level Pressure Sea-Level Pressure
Ramey's study, children from poverty-level families IQ experiment Ramey's study, children from poverty-level families IQ experiment
Video: Pressure Flow Model Animation

For a complete list of videos, visit our video library