physics

98. On which of these hills does the ball roll down with increasing speed and decreasing acceleration along the path? (Use this example if you wish to explain to someone the difference between speed and acceleration.)

99. If you drop an object, its acceleration toward the ground is 10 m/s2. If you throw it down instead, will its acceleration after leaving your hand be greater than 10 m/s2?
Ignore air resistance. Defend your answer.

100. Can you think of a reason why the acceleration of the object thrown downward through the air in the preceding question would actually be less than 10 m/s2?

  1. 👍 0
  2. 👎 0
  3. 👁 339
asked by Becca
  1. 99. If you drop an object:
    Vo = 0 = Initial velocity.
    a = g = 10 m/s^2.

    If you throw it down:
    Vo > 0
    a = g = 10 m/s^2.

    So in both cases, the acceleration remains constant at 10 m/s^2.

    1. 👍 0
    2. 👎 0
    posted by Henry

Respond to this Question

First Name

Your Response

Similar Questions

  1. physics

    ignoring air resistance, describe how an object would fall to the ground using the words velocity and acceleration for a ball that is thrown straight up: a.) the velocity is __on the way up (increasing, decreasing, constant, zero)

    asked by Anita on October 9, 2012
  2. science

    In the diagram above, the arrows represent momentum. A larger arrow indicates more momentum. Which of the following best describes how the balls will move after ball A collides with ball B? (1 point) 1. Ball A will bounce off of

    asked by help pls on February 22, 2016
  3. Calculus

    Given f'(x)=(2-x)(6-x), determine the intervals on which f(x) is increasing or decreasing Options: 1) Decreasing (-∞,2); increasing on (6,∞) 2) Decreasing (2,6); increasing on (-∞,2)U(6,∞) 3) Decreasing (-∞,2)U(6,∞);

    asked by Karen on December 26, 2018
  4. physics

    a coconut is falling from a palm tree which of these is correct? velocity of coconut p.e of coconut 1-decreasing decreasing 2-increasing decreasing 3-increasing increasing 4-decreasing increasing

    asked by sweetie on November 24, 2010
  5. Calculus

    Find the open intervals on which f(x) = -6x^2 + 96x + 7 is increasing or decreasing. a. increasing on (-inf, 16); decreasing on (16, inf). b. increasing on (-inf, 14); decreasing on (14, inf). c. increasing on (-inf, 84);

    asked by Anonymous on December 6, 2016
  1. Algebra

    Im having a hard time figuring out this problem: Use the function, y=-(x+1)^2 +2, to answer the following parts. The increasing interval and decreasing interval To find both I believe that: increasing : x < -1 decreasing : x > 1

    asked by Mike on May 5, 2011
  2. Physics

    A weight is hung from the ceiling of an elevator by a massless string. under which circumstances will the tension in the cord be the greatest? smallest? a.) The elevator rises with decreasing speed b.) The elevator rises with

    asked by Maggie on December 11, 2012
  3. physics

    A spherical bowling ball with mass m = 4.1 kg and radius R = 0.116 m is thrown down the lane with an initial speed of v = 8.9 m/s. The coefficient of kinetic friction between the sliding ball and the ground is ¦Ì = 0.34. Once

    asked by JOJO on March 18, 2013
  4. physics

    a) Does ball B roll faster along the lower part or track a than ball A rolls along track A? (b) Is the speed gained by ball B going down the extra dip the same as the speed it loses going up near ... (c) On track B, won't the

    asked by Anonymous on August 11, 2010
  5. physics

    a) Does ball B roll faster along the lower part or track a than ball A rolls along track A? (b) Is the speed gained by ball B going down the extra dip the same as the speed it loses going up near ... (c) On track B, won't the

    asked by Anonymous on August 12, 2010

More Similar Questions