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 56 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
:D TYSM

ryhom

  • Member
  • Posts: 366
Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

« previous next »
 

Did you know?

Pope Sylvester II tried to introduce Arabic numbers into Europe between the years 999 and 1003, but their use did not catch on for a few more centuries, and Roman numerals continued to be the primary number system.

Did you know?

The word drug comes from the Dutch word droog (meaning "dry"). For centuries, most drugs came from dried plants, hence the name.

Did you know?

Signs of depression include feeling sad most of the time for 2 weeks or longer; loss of interest in things normally enjoyed; lack of energy; sleep and appetite disturbances; weight changes; feelings of hopelessness, helplessness, or worthlessness; an inability to make decisions; and thoughts of death and suicide.

Did you know?

In ancient Rome, many of the richer people in the population had lead-induced gout. The reason for this is unclear. Lead poisoning has also been linked to madness.

Did you know?

More than nineteen million Americans carry the factor V gene that causes blood clots, pulmonary embolism, and heart disease.

(Left panel) The transition level (TL) for moving out of the parental home for 240 young men and ... (Left panel) The transition level (TL) for moving out of the parental home for 240 young men and ...
Chemical equilibrium and the law of mass action. Chemical equilibrium and the law of mass action.
A basic principle of symbolic interactionism is that meaning is not inherent in an object or event, ... A basic principle of symbolic interactionism is that meaning is not inherent in an object or event, ...
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, ...
Mass Wasting Triggers Mass Wasting Triggers
An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ... An empty spice bottle has an inner volume of 1.31 10-4 m3 . It has a mass of 112 g when filled ...
Video: EpiPen Animation (Part 2)

For a complete list of videos, visit our video library