Physics

A car is moving such that its kinetic energy is 6.20×105 J. The car accelerates and the engine does 2.90×105 J of work to accelerate the car. What is the final kinetic energy of the car? Ignore energy lost to friction.

(Your answer must be accurate to at least 1%. Give your answer to at least three significant figures.)

  1. 👍 0
  2. 👎 0
  3. 👁 87
asked by Kevin
  1. Just add

    1. 👍 0
    2. 👎 0
    posted by Damon

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A car is moving such that its kinetic energy is 6.20×105 J. The car accelerates and the engine does 2.90×105 J of work to accelerate the car. What is the final kinetic energy of the car? Ignore energy lost to friction. (Your

    asked by Anonymous on April 20, 2016
  2. physics

    A car is moving such that its kinetic energy is 2.20×105 J. The car accelerates and the engine does 2.10×105 J of work to accelerate the car. What is the final kinetic energy of the car? Ignore energy lost to friction. (Your

    asked by Anonymous on November 9, 2010
  3. physics

    A car is moving at 36 miles per hour. The kinetic energy of that car is 5 × 105 J. How much energy does the same car have when it moves at 115 miles per hour? Answer in units of J

    asked by Maya on December 12, 2014
  4. Physics

    A car is moving at 50 miles per hour. The kinetic energy of that car is 5 × 105 J. How much energy does the same car have when it moves at 114 miles per hour? Answer in units of J

    asked by Kaylee on June 20, 2014
  5. Physics

    A car with a total mass of 1.48 103 kg has wheels of radius 33.5 cm and moment of inertia 0.810 kg · m2. (a) Find the car's translational kinetic energy when the car is moving at a speed of 30.0 m/s. (b) Find the car's rotational

    asked by BrandiB123456789 on December 10, 2013
  6. physics

    An older-model car accelerates from 0 to speed v in 10. s. A newer, more powerful sports car of the same mass accelerates from 0 to 4v in the same time period. Assuming the energy coming from the engine appears only as kinetic

    asked by sherry on March 3, 2016
  7. physics

    A car is moving at 53 miles per hour. The kinetic energy of that car is 5 × 105 J. How much energy does the same car have when it moves at 102 miles per hour? Answer in units of J HELP!!!! I've tried doing (5*10 J)* (102/53)^2

    asked by Edgar on December 14, 2014
  8. Physics ~please help me!

    1.) A car (m=1200 kg) moves form 2.0 m/s to 15.0 m/s in 100 m. a) What is the initial kinetic energy of the car? b) What is the final kinetic energy of the car? c) what is the net work applied to the car? d) what force is applied

    asked by Isis on February 3, 2013
  9. physics

    How do i find this? A shooting star is a meteor that burns up when it reaches Earth's atmosphere. Many of these meteoroids are quite small. Calculate the kinetic energy of a meteoroid of mass 6.0 g moving at a speed of 45 km/s and

    asked by raina on April 4, 2010
  10. Physics

    Two cars are moving. The first car has twice the mass of the second car but only half as much kinetic energy. When both cars increase their speed by 4.54 m/s, they then have the same kinetic energy. Calculate the original speeds

    asked by Gina on September 21, 2010

More Similar Questions