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The sign of the acceleration is positive.

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Q: A student drops a penny from the top of a tower and decides that she will establish a coordinate system in which the direction of the penny's motion is positive what is the sign of the acceleration of?
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What happen to an object when it has positive acceleration?

Either of these is referred to as positive acceleration: A) the object's velocity is increasing in the frame of reference B) the object is being moved in a positive direction in a coordinate plane


What is happening to an object when it has an acceleration?

Either of these is referred to as positive acceleration: A) the object's velocity is increasing in the frame of reference B) the object is being moved in a positive direction in a coordinate plane


What is happening to an object when it has positive acceleration?

Either of these is referred to as positive acceleration: A) the object's velocity is increasing in the frame of reference B) the object is being moved in a positive direction in a coordinate plane


Can there be a positive acceleration and a negative acceleration?

Yes, acceleration can be positive and negative because acceleration is a vector. It has both direction and magnitude. The direction is what makes it positive or negative. Negative acceleration is usually called deceleration.


If objects get faster with time the direction of the acceleration is?

The acceleration is positive.


How can you tell if acceleration is positive or negative?

Acceleration is positive when an object is speeding up in the positive direction (e.g., increasing velocity), and negative when the object is slowing down in the positive direction or moving in the negative direction (e.g., decreasing velocity). The sign of acceleration depends on the direction of the change in velocity relative to the direction of motion.


What has to happen to a car's acceleration and velocity for a car's speed to increase and have a positive acceleration?

For a car's speed to increase and have a positive acceleration, the car's velocity needs to be increasing in the same direction as its acceleration. This means that the car is speeding up. When the velocity and acceleration have the same sign (both positive or both negative), the car's speed will increase.


How can a positive acceleration produce a deceleration?

If an object is moving in the negative direction (backwards) and experiences a positive acceleration in the positive direction (forwards), it will slow down and decelerate. This is because the acceleration is acting in the opposite direction of the object's velocity, causing it to decrease.


Problems about positive acceleration?

Positive acceleration is an increase in velocity in the direction in which motion is being measured.


When angular velocity decreases the direction of angular acceleration is opposite to angular velocity .why?

Take the velocity to be in positive direction. Positive acceleration increases velocity and they are in the same direction. Negative acceleration reduce velocity and they are in opposite direction. It does not matter if the motion in linear or anfular.


What does x-coordinate mean?

In a coordinate system, it represents the distance from the origin in the positive direction of the x-axis.


How can an object slowing down have an acceleration that's not negative?

An object slowing down can have an acceleration that is not negative if it is moving in the opposite direction of its velocity. In this case, the acceleration would be in the same direction as the object's motion, even though it is slowing down. This can happen, for example, when an object is moving in the positive direction but experiencing a negative acceleration due to a force in the negative direction.