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

Author Question: Suppose a ball is thrown straight up, reaches a maximum height, then falls to its initial height. ... (Read 124 times)

cool

  • Hero Member
  • *****
  • Posts: 570
on: Jul 29, 2018
Suppose a ball is thrown straight up, reaches a maximum height, then falls to its initial height. Make a statement about the direction of the velocity and acceleration as the ball is going up.
 
  A) Both its velocity and its acceleration point upward.
  B) Its velocity points upward and its acceleration points downward.
  C) Its velocity points downward and its acceleration points upward.
  D) Both its velocity and its acceleration points downward.
  E) Neither velocity nor acceleration can be determined without additional information.

Question 2

Two objects, one of mass m and the other of mass 2m, are dropped from the top of a building. When they hit the ground
 
  A) both of them will have the same kinetic energy.
  B) the heavier one will have twice the kinetic energy of the lighter one.
  C) the heavier one will have four times the kinetic energy of the lighter one.
  D) the heavier one will have times the kinetic energy of the lighter one.


Related Topics

Need homework help now?

Ask unlimited questions for free

Ask a Question
Marked as best answer by a Subject Expert

okolip

  • Sr. Member
  • ****
  • Posts: 362
Reply #1 on: Jul 29, 2018
Answer to Question 1

B

Answer to Question 2

B


cool

  • Member
  • Posts: 570
Reply 2 on: Jul 29, 2018
YES! Correct, THANKS for helping me on my review

lcapri7

  • Member
  • Posts: 350
Reply 3 on: Yesterday
Gracias!

« previous next »
 

Did you know?

The use of salicylates dates back 2,500 years to Hippocrates's recommendation of willow bark (from which a salicylate is derived) as an aid to the pains of childbirth. However, overdosage of salicylates can harm body fluids, electrolytes, the CNS, the GI tract, the ears, the lungs, the blood, the liver, and the kidneys and cause coma or death.

Did you know?

The Centers for Disease Control and Prevention has released reports detailing the deaths of infants (younger than 1 year of age) who died after being given cold and cough medications. This underscores the importance of educating parents that children younger than 2 years of age should never be given over-the-counter cold and cough medications without consulting their physicians.

Did you know?

A strange skin disease referred to as Morgellons has occurred in the southern United States and in California. Symptoms include slowly healing sores, joint pain, persistent fatigue, and a sensation of things crawling through the skin. Another symptom is strange-looking, threadlike extrusions coming out of the skin.

Did you know?

Approximately 70% of expectant mothers report experiencing some symptoms of morning sickness during the first trimester of pregnancy.

Did you know?

Although not all of the following muscle groups are commonly used, intramuscular injections may be given into the abdominals, biceps, calves, deltoids, gluteals, laterals, pectorals, quadriceps, trapezoids, and triceps.

Find the final amount if the initial amount is 400 units. Find the final amount if the initial amount is 400 units.
Due to compressibility, atmospheric mass gradually “thins out” with height. Due to compressibility, atmospheric mass gradually “thins out” with height.
Recommended Maximum Doses of Local Anesthetics with Vasoconstrictor Recommended Maximum Doses of Local Anesthetics with Vasoconstrictor
Tai chi walk along straight line. From tai chi stance, shift weight to the back leg and turn the ... Tai chi walk along straight line. From tai chi stance, shift weight to the back leg and turn the ...
Frequency distribution of phenotypes from the possible offspring in Figure 5.7. Height of the offspr Frequency distribution of phenotypes from the possible offspring in Figure 5.7. Height of the offspr
The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum The surface temperature of the star is 6000 K. At what wavelength is its light output a maximum
Video: How does an animal choose what food to eat?

For a complete list of videos, visit our video library