Mechanics

posted by .

If a car moving at 180km/h redues to 72km,what is the percentage change in kinetic energy.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Mechanics

    What is the decrease in elevation of a 4-kg body whose kinetic energy increases from 20 J to 100 J as a result of moving downward along an inclined plane?
  2. 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
  3. 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?
  4. Physics URGENT!!!!

    1.A 75 kg passenger in a van is wearing a seat belt whent he van moving at 15m/s, collides with a conrete wall. The front end of the van collapses 0.50 m as it comes to rest. a) what was the paseenger's kinetic energy before the crash …
  5. physics

    A 2000 kg car is moving with a velocity of 50 km/hr. What is its kinetic energy?
  6. physics

    Let a force of 1500 Newtons act through a distance of 200 meters on a 1500 kg car which starts from rest. a. What is the work done?
  7. physics

    if a car moving 180km/h reduces to 72km, what is the percentage change in kinetic energy?
  8. 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 …
  9. 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?
  10. 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?

More Similar Questions