Physics

A ball is tossed straight up from the surface of a small spherical asteroid with no atmosphere. The ball goes to a height ewual to the asteroid's radius and then falls straight down towardd the surface of the asteroid. What forces if any act on the ball while it is on the way up?
a) only a decreasing gravitational forces acts downward
b) Only an increasing gravitational gorce that acts downwards.
c) only a constant gravitational gorce that acts downwards
d) Both a constant gravitational foce that acts downwards and a decreasing force that acts upwards.
e) No foces act on the ball

With there being no atmosphere would g be contant thus the answer is c) or is the answer d)?



g is NOT constant, either there or on Earth. g depends on the inverse distance squared from the center. As one gets more altitude, g decreases. In any case, the force is "downward", or attractive.

  1. 👍 0
  2. 👎 0
  3. 👁 824
  1. a. Only decreasing gravitational force acts on the ball.

    1. 👍 0
    2. 👎 0

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    Speed of Asteroids With the same Radius? Two spherical asteroids have the same radius R . Asteroid 1 has mass M and asteroid 2 has mass 2M. The two asteroids are released from rest with distance 10R between their centers. What is

    asked by Dan on April 12, 2011
  2. Math

    (a) What is the escape speed on a spherical asteroid whose radius is 503 km and whose gravitational acceleration at the surface is 0.464 m/s2? (b) How far from the surface will a particle go if it leaves the asteroid's surface

    asked by A on July 14, 2020
  3. Mathematics -- Geometry --

    A bowling ball is a solid ball with a spherical surface and diameter 30 cm. To custom fit a bowling ball for each bowler, three holes are drilled in the ball. Bowler Kris has holes drilled that are 8 cm deep and have diameters of

    asked by Knights on February 12, 2013
  4. Physics

    15)A small ball of mass m is aligned above a larger ball of mass M = 1.2 kg (with a slight separation, as with the baseball and basketball of Figure (a)), and the two are dropped simultaneously from height h = 2.4 m. (Assume the

    asked by Anonymous on May 25, 2017
  5. College Physics w/Calculus

    (a) What is the escape speed on a spherical asteroid whose radius is 570 km and whose gravitational acceleration at the surface is 3.1 m/s2? (b) How far from the surface will a particle go if it leaves the asteroid's surface with

    asked by Oriana on December 14, 2010
  1. Physics

    In 2000, NASA placed a satellite in orbit around an asteroid. Consider a spherical asteroid with a mass of 1.00×1016 and a radius of 8.50 . What is the speed of a satellite orbiting 4.70km above the surface? What is the escape

    asked by Mikhail on April 15, 2010
  2. Physics

    An asteroid is moving along a straight line. A force acts along the displacement of the asteroid and slows it down. The asteroid has a mass of 4.5× 104 kg, and the force causes its speed to change from 7000 to 5000m/s. (a) What

    asked by Elle on April 4, 2014
  3. Solid Mensuration

    A spherical wooden ball 1 ft in diameter is used as a float for a boat. If the ball sinks to a depth of 7 inches, find the area of the wetted surface.

    asked by G on April 3, 2013
  4. Algebra 1

    Suppose a spherical asteroid has a radius of approximately 9.0 x 10^2m. Use the formula 4/3*pi r^3 to find the approximate volume of the asteroid. 2.57 * 10^9 m^3 1.07 * 10^4 m^3 2.54 * 10^10 m^3 4.51 * 10^10 m^3 I've worked

    asked by Fading on February 20, 2017
  5. Physics

    A penny rests on top of a bowling ball. You give the bowling ball a slight bump and the penny slides off the frictionless, spherical surface as shown below. At what angle θ does the penny leave the surface of the bowling ball?

    asked by George on March 8, 2014

You can view more similar questions or ask a new question.