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Describe the motion of a bus whose acceleration is 0 but whose speed is not 0.?
ReyREY0422
The bus is in steady motion along a straight line at a constant velocity.
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∙ 14y ago
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What is negative acceleration?
Negative Acceleration:Negative Acceleration refers to an object whose speed decreases as it moves away from its original starting position.Actually, that's not entirely correct. Acceleration is a vector quantity and, therefore, depends on direction. If an object is moving in a straight line, in the negative direction, its acceleration is positive if its speed decreases with time and negative if its speed increases with time.Think of it this way: if the acceleration vector is pointed in the same direction as the way an object is moving, the object speeds up. If the acceleration vector is pointed opposite the direction of motion, it slows down.
How velocity different from speed?
Velocity is acceleration and direction put together. The velocity of something changes if either acceleration or direction changes. Speed is just the average MPH measure. Velocity is not acceleration and direction put together. In that kind of description, velocity is is speed and direction put together. Velocity is a vector, whose size is the speed.
Under what condition a body whose velocity is directed towards east has an acceleration directed west?
In circular motion an object accelerates towards the radius of the circle but its velocity is unchanged
What force do you need to change speed?
The most basic equation in physics, which was formulated by Isaac Newton, is force equals mass times acceleration. So the amount of force that you need to change speed depends both on the mass of the object whose speed you are changing, and the amount of the change in speed.
A 34.1 kg child rides a Ferris wheel whose diameter is 18.3 m When the ride is turning at a constant rate the child's speed has a constant value of 4.23 ms Find the normal force the seat exerts?
First calculate the acceleration: the magnitude of circular acceleration is velocity2/ radius.Then use Newton's Law: force = mass x acceleration.
What changes in motion cause acceleration?
"Acceleration" is the term used to describe motion whose speed, or direction, or both, are changing.
Describe the motion of a bus whose accelaration is zero but the speed is not zero?
It is slowing down. The bus is not picking up speed--accelerating--and its speed isn't zero, as it is not completely stopped. ------------------------------------------------------------------------------------------------------------ The above answer is incorrect as slowing down indicates a negative acceleration not a zero one. The correct answer is that the bus is at a constant speed - any constant speed.
Infer the motion of a car whose speed-time graph shows a horizontal line followed by a straight line that slopes downward to the bottom of the graph?
The horizontal line represents that the acceleration is zero or constant speed and the line that slopes downward means that the object is slowing down and it is a negative acceleration.
What is negative acceleration?
Negative Acceleration:Negative Acceleration refers to an object whose speed decreases as it moves away from its original starting position.Actually, that's not entirely correct. Acceleration is a vector quantity and, therefore, depends on direction. If an object is moving in a straight line, in the negative direction, its acceleration is positive if its speed decreases with time and negative if its speed increases with time.Think of it this way: if the acceleration vector is pointed in the same direction as the way an object is moving, the object speeds up. If the acceleration vector is pointed opposite the direction of motion, it slows down.
How velocity different from speed?
Velocity is acceleration and direction put together. The velocity of something changes if either acceleration or direction changes. Speed is just the average MPH measure. Velocity is not acceleration and direction put together. In that kind of description, velocity is is speed and direction put together. Velocity is a vector, whose size is the speed.
What is random motion with examples?
Motion whose direction and speed changes continuously is called random motion. Eg:a fish swimming in water , a flying butterfly ,a bird flying in the sky,etc.
What is a non uniform motion?
"Non-uniform" motion is another name for "accelerated" motion, that is, anymotion whose speed or direction changes.Anything that starts, stops, speeds up, slows down, turns around, turns a corner,moves along a curved path, or moves in a circle, is experiencing non-uniform motion.Uniform motion is motion in a straight line at a constant speed. It's doubtful thatit can ever be seen on Earth.
What would be the shape of a speed versus time graph for an object in free fall?
The graph is a straight line whose slope is the acceleration of gravity.
What is positive accelerations?
Positive Acceleration refers to the force acting on an object whose speed increases as it moves away from its original starting position. If the velocity is increasing along with time it is called positive acceleration, and if the velocity decreases it is negative acceleration.
Under what condition a body whose velocity is directed towards east has an acceleration directed west?
In circular motion an object accelerates towards the radius of the circle but its velocity is unchanged
What force do you need to change speed?
The most basic equation in physics, which was formulated by Isaac Newton, is force equals mass times acceleration. So the amount of force that you need to change speed depends both on the mass of the object whose speed you are changing, and the amount of the change in speed.
What is the acceleration of an object whose net force is 7.8?
Not enough information. From Newton's Second Law, acceleration = force / mass.
