physics

A car coasts (engine off) up a 30 degree grade. If the speed of the car is 25m/s at the bottom of the grade, what is the distance traveled by the car before it comes to rest?

  1. 0
  2. 0
  3. 16
asked by Lorraine
  1. m•a=m•g•sinα
    a=g•sinα
    s=v²/2•a=
    = v²/2•g•sinα=
    =25²/2•9.8•0.5=
    =63.78 m

    1. 0
    2. 0
    posted by Elena

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A car of mass 1100 kg starts from rest at sea level and climbs a hill of altitude 50 m. At the top of the hill the car has a speed of 25 m/s. From the top of the hill the driver turns off the engine and coasts down to an altitude
  2. Physics

    A car of mass 1100 kg starts from rest at sea level and climbs a hill of altitude 50 m. At the top of the hill the car has a speed of 25 m/s. From the top of the hill the driver turns off the engine and coasts down to an altitude
  3. Physics

    A car of mass 1100 kg starts from rest at sea level and climbs a hill of altitude 50 m. At the top of the hill the car has a speed of 25 m/s. From the top of the hill the driver turns off the engine and coasts down to an altitude
  4. Science

    A railroad diesel engine weighs four times as much has a freight car. if the diesel engine coasts at 5 km/h into a freight car that is initially at rest, show that the speed of the coupled cars is 4 km/h.
  5. PHYSICS

    A railroad diesel engine weighs 3.9 times as much as a freight car. The diesel engine coasts at 5.3 km/h into the freight car that is initially at rest. After they couple together, what is their speed?
  6. PHYSICS

    A railroad diesel engine weighs 3.9 times as much as a freight car. The diesel engine coasts at 5.3 km/h into the freight car that is initially at rest. After they couple together, what is their speed?
  7. Physics

    A car travels at a speed of 25 m/s on a flat stretch road. The driver must maintain pressure on the accelerator to keep the car moving at this speed. The car's engine is doing work on the car, yet the kinetic energy of the car is
  8. Physics

    A car travels at a speed of 25 m/s on a flat stretch road. The driver must maintain pressure on the accelerator to keep the car moving at this speed. The car's engine is doing work on the car, yet the kinetic energy of the car is
  9. Science

    A 1 420kg car coasts in neutral down a 2.0 degrees hill. The car attains a terminal velocity of 24.3 meters per second. How much power must the engine deliver to drive the car on a level road at 24.3 meters per second?
  10. physics

    Your physics teacher drives an ideal frictionless car of mass 1000 kg which coasts along the level road to his home at a constant speed of 48 km/h with the engine turned off. It then coasts 40 m up his sloping driveway and comes

More Similar Questions