physics

posted by .

what is the mass of a vehicle traveling at 25 km/hr with a kinetic energy equal to 1 x 10 to the 4th power J?

  • physics -

    V = 25km/h = 25000m/3600s = 6.94 m/s.

    KE = 0.5m*V^2 = 10^4 J.
    0.5m*6.94^2 = 10000
    24.08m = 10000
    m = 415.3 kg.

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. Physical Science

    An automobile traveling at 25km/hour has kinetic energy equal to 1x10 to the fourth power J. What is the mass of the car?
  2. Physics

    A particle of mass m0 is given a kinetic energy equal to one-third its rest-mass energy. How fast must the particle be traveling?
  3. Physics

    A particle of mass m0 is given a kinetic energy equal to one-third its rest-mass energy. How fast must the particle be traveling
  4. Physics

    A car (mass = 1180 kg) is traveling at 36 m/s when it collides head-on with a sport utility vehicle (mass = 2380 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport …
  5. Physics

    A car (mass = 1070 kg) is traveling at 40 m/s when it collides head-on with a sport utility vehicle (mass = 2570 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport …
  6. physics

    A car (mass = 1100 kg) is traveling at 33.0 m/s when it collides head-on with a sport utility vehicle (mass = 2800 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport …
  7. Physics

    A car (mass = 1080 kg) is traveling at 25.4 m/s when it collides head-on with a sport utility vehicle (mass = 2750 kg) traveling in the opposite direction. In the collision, the two vehicles come to a halt. At what speed was the sport …
  8. Physics Classical Mechanics

    The figure below shows the experimental setup to study the collision between two carts. In the experiment cart A rolls to the right on the level track, away from the motion sensor at the left end of the track. Cart B is initially at …
  9. Physics

    Vehicle A is traveling at 93.602fps and is 819.017 feet behind vehicle B. Vehicle A takes 8.75 seconds to overtake vehicle B. How fast is vehicle B traveling?
  10. Physics

    Vehicle A is 819.017 feet behind vehicle B. Vehicle A is traveling at 93.602fps and vehicle B is traveling at 44fps. How long until vehicle A catches vehicle B?

More Similar Questions