An electron is accelerated from rest to a velocity of 2.0x10^7 m/s.
a) if the electron travelled 0.10m while it was being accelerated, what was its acceleration?
b)How long did the electron take to attain its final velocity?

Please correct me if I'm wrong but I believe the equations I have to use are V2²=V1²+2ad for part a and V=d/t for part b. Thanks for your help.

  1. 👍
  2. 👎
  3. 👁
  1. a. V^2=Vo^2 + 2a*d. Your Eq is correct.
    a = (V^2-Vo^2)/2d.
    a = (4*10^14-0)/0.2 = 2.0*10^15 m/s^2.

    b. V = Vo + at.

    t = (V-Vo)/a.
    t = (2*10^7-0)/2*10^15 = 1*10^-8 s.

    1. 👍
    2. 👎
  2. An electron starts from rest travels a distance of 15cm with constant acceleration and hits a television screen at a speed of 3×10^6m/s.Calculate the acceleration of the electon.

    1. 👍
    2. 👎
  3. is this right?? lol

    1. 👍
    2. 👎

Respond to this Question

First Name

Your Response

Similar Questions

  1. science

    an electron moves a distance of 6.0 cm when accelerated from rest by an electric field of strength 2*10^4 n/c . Calculate the time of travel?

  2. Physics

    An electron with a speed of 3.00X10^6 m/s moves into a uniform electric field of magnitude 1.00X10^3 N/C. The field lines are parallel to the electron’s velocity and pointing in the same direction as the velocity. How far does

  3. physics

    An electron is accelerated by a 4.7 kV potential difference. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 8.0 cm?

  4. Physics

    An electron is projected into a uniform electric field E = (1000 N/C)i with an initial velocity (2.00* 10^6m/s)i in the direction of the field. How far the electron travel before it is brought momentarily to rest?

  1. physics

    An electron is accelerated horizontally from rest in a television picture tube by a potential difference of 5400V . It then passes between two horizontal plates 6.1cm long and 1.2cm apart that have a potential difference of 250V

  2. physics

    ) A hydrogen atom has its electron in the n = 5 level. The radius of the electron's orbit in the Bohr model is 1.323 nm. Find the de Broglie wavelength of the electron under these circumstances. What is the momentum, mv, of the

  3. physics

    In a television picture tube, electrons strike the screen after being accelerated from rest through a potential difference of 25000V. The speeds of the electrons are quite large, and for accurate calculations of the speeds, the

  4. physics

    An electron is accelerated from rest through a potential difference that has a magnitude of 2.90 × 107 V. The mass of the electron is 9.11 × 10-31 kg, and the negative charge of the electron has a magnitude of 1.60 × 10-19 C.

  1. Physics

    An electron with a mass of 9.11 *10^31 Kg is accelerated from rest across a set if parallel plates that have a potential difference of 150 v and are separated by 0.80 cm A) determine the kinetic energy of the electron after it

  2. Physics 221

    An electron is accelerated by a uniform electric field (1000 V/m) pointing vertically upward. Use energy methods to get the magnitude and direction of its velocity after it moves 0.10 cm form rest. Does the electron gain or lose

  3. physics

    An electron is accelerated in the uniform field E = 2.0 x 104 N/C between two parallel charged plates (Negative charged plate is on the left and positively charges plate is on the right). The separation of the plates is 1.5 cm.


    An electron iwth an initial speed of 500,000 m/s is brought to rest by an electric field. (a) Did the electron move into a region of higher potential or lower potential? (b) What was the potential difference that stopped the

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