Objekt

What causes an unrestrained passenger in a car to fly forword when the car stops suddenly?

What causes an unrestrained passenger in a car to fly forword when the car stops suddenly?

Explain what causes an unrestrained passenger in a car to fly forward when the car stops suddenly. Inertia because the momentum of the person is still going forward.

  1. When a bus makes a sudden stop the passengers lurch forward as a consequence of?
  2. What is the difference between a positive and negative acceleration?
  3. Which one of the following is true of an object that is said to be moving slow?
  4. What is the car's velocity?
  5. What happens to the gravitational force between two masses when the distance between the masses is doubled?
  6. What does escape velocity measure quizlet?
  7. What is difference between uniform and nonuniform motion?
  8. What causes negative acceleration?
  9. Which took longer walking to the store or walking home?
  10. What causes an object to accelerate?
  11. What is accelerating uniformly?
  12. What cause the object change in motion?
  13. What controls on a car cause a change in speed?
  14. How can something accelerate without changing speed?
  15. Does changing direction affect acceleration?

When a bus makes a sudden stop the passengers lurch forward as a consequence of?

Newton's First Law: Law of Inertia

The moving bus is exerting a force that eventually gets the passengers moving at the same speed. If the bus suddenly stops, the passengers surge forward.

What is the difference between a positive and negative acceleration?

An object which moves in the positive direction has a positive velocity. If the object is slowing down then its acceleration vector is directed in the opposite direction as its motion (in this case, a negative acceleration).

Which one of the following is true of an object that is said to be moving slow?

Which one of the following is true of an object that is said to be moving slowly? The object has a small instantaneous speed.

What is the car's velocity?

Velocity is a vector expression of the displacement that an object or particle undergoes with respect to time . The standard unit of velocity magnitude (also known as speed ) is the meter per second (m/s). ... If you stand by the side of the road, the velocity of the car relative to you is 20 m/s northward.

What happens to the gravitational force between two masses when the distance between the masses is doubled?

So as two objects are separated from each other, the force of gravitational attraction between them also decreases. If the separation distance between two objects is doubled (increased by a factor of 2), then the force of gravitational attraction is decreased by a factor of 4 (2 raised to the second power).

What does escape velocity measure quizlet?

escape velocity. speed at which something never comes back because the amount its decelerating is less than how quickly gravity is weakening. the thing will go on infinitely away from Earth.

What is difference between uniform and nonuniform motion?

Uniform motion covers equal distance at an equal time interval. Non-uniform motion covers unequal distance at equal time interval. In uniform motion, the distance to time graph shows a straight line. In non-uniform motion, the distance to time graph shows a curved line.

What causes negative acceleration?

According to our principle, when an object is slowing down, the acceleration is in the opposite direction as the velocity. Thus, this object has a negative acceleration.

Which took longer walking to the store or walking home?

In which segment might the student be waiting for a traffic light? Which took longer, walking to the store or walking home? Walking home. You can tell an object has moved because its velocity has changed.

What causes an object to accelerate?

An object accelerates when its speed changes or its direction of motion changes or both. ... If the forces pushing or pulling on an object are not balanced (a net force acts) then the object will accelerate in the direction of the net force.

What is accelerating uniformly?

Translation: If an object's speed (velocity) is increasing at a constant rate then we say it has uniform acceleration. The rate of acceleration is constant. If a car speeds up then slows down then speeds up it doesn't have uniform acceleration. uniform acceleration.

What cause the object change in motion?

Force and Motion

Forces cause all motions. Every time the motion of an object changes, it's because a force has been applied to it. Force can cause a stationary object to start moving or a moving object to change its speed or direction or both. A change in the speed or direction of an object is called acceleration.

What controls on a car cause a change in speed?

Two controls on a car that change its speed are the accelerator pedal and brake pedal. Three controls on a car can change its velocity - the accelerator pedal, brake pedal, and steering wheel. Velocity changes if either speed or direction change.

How can something accelerate without changing speed?

Even if the magnitude of the velocity vector (it's speed) does not change, a change in direction (over time) is an acceleration. Velocity means speed in a certain direction. When you don't change speed, you may yet change direction, and, hence, accelerate.

Does changing direction affect acceleration?

Does changing direction affect acceleration? A change in velocity is either a change in an object's speed or its direction. When a moving object changes direction, its velocity changes and it is accelerating.

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