physics

On planet Tehar, the acceleration of gravity is the same as that on Earth but there is also a strong downward electric field with the field being uniform close to the planet's surface. A 2.16 kg ball having a charge of 4.80 uC is thrown upward at a speed of 21.0 m/s and it hits the ground after an interval of 3.63 s. What is the potential difference between the starting point and the top point of the trajectory?

  1. 0
  2. 0
  3. 8
asked by VJC
  1. The ball's acceleration downward is given by
    a * (3.63/2 s) = 21.0 m/s

    a = 11.57 m/s^2
    Since g = 9.81 m/s^2, the downward acceleration due to electrostatic force is 1.76 m/s^2

    The potential difference V due to electrostatic force at the top of the trajectory is given by
    M*1.76* H = Q*V

    Solve for V.

    1. 0
    2. 0
    posted by drwls
  2. what is H?

    1. 0
    2. 0
    posted by VJC

Respond to this Question

First Name

Your Response

Similar Questions

  1. earth

    On planet Tehar, the free fall acceleration is the same as that on the Earth, but there is also a strong downward electric field that is uniform close to the planets surface. A 2.00k ball having a charge of 5.00C is thrown upward

    asked by Anonymous on December 14, 2010
  2. earth

    On planet Tehar, the free-fall acceleration is the same as that on Earth but there is also a strong downward electric field that is uniform close to the planet's surface. A 2.00 kg ball having a charge of 5.00 µC is thrown upward

    asked by Anonymous on October 18, 2010
  3. physics help 3!! **

    Based on the following data about planet X (which orbits around the Sun): Planet X's distance from Sun = 3.6*1012 m Planet X's radius = 2*106 m Planet X's mass = 8.2*1022 kg a.) Find gx, the size of the acceleration due to gravity

    asked by kelsey on October 31, 2008
  4. Physics help ASAP

    Suppose you are visiting a planet in a distant part of the galaxy.To determine the acceleration due to gravity on this planet, you drop a rock from a height of 55 m. The rock strikes the ground 1.9 s later.How many times greater

    asked by Steve on September 21, 2014
  5. Physics

    1. Planet X orbits the sun with a mean orbital radius that is 6200 times that of earth. Its diameter is twice that of earth, and its mass is 8 times that of earth. A) Calculate the year of the planet X. B) Calculate the

    asked by Sandhya on April 23, 2009
  6. physics

    A planet has a radius of about 0.85 times Earth's radius and a mass of only 0.74 times Earth's mass. Estimate the acceleration due to gravity on the planet. Use M_{Earth} = 5.972 x 10^{24} kilograms and r_{Earth} = 6370 kilometers

    asked by Melissa on March 3, 2014
  7. earth

    a space traveller determines the radius of a planet to be half of earth . After landing on its surface , he finds the acceleration due to gravity to be twice of that of surface of earth. Find the ratio of mass of planet to the

    asked by hanu on September 19, 2012
  8. physics

    On planet x, an object weighs 10.4N. On planet B where the magnitude of the free fall acceleration is 1.48g (where g=9.8 m/s^2 is the gravitational acceleration on Earth),the object weighs 24.6N. The acceleration of gravity is 9.8

    asked by alexa on July 3, 2011
  9. Physics

    The acceleration due to gravity on a planet other than the earth has a magnitude of 1.50 m/s2. As in examples 6, 7 and 8, a placekicker kicks a football with an initial speed of 20.3 m/s at an angle of 39.4 ° above horizontal.

    asked by Jena on January 29, 2007
  10. physics

    On planet X, an object weighs 18.1 N. On planet B where the magnitude of the free-fall acceleration is 1.28 g (where g = 9.8 m/s 2 is the gravitational acceleration on Earth), the object weighs 37.9 N. The acceleration of gravity

    asked by zach on December 8, 2015

More Similar Questions