Does The Sign Of The Acceleration Alone Tell You Whether An Object Is Speeding Up Or Slowing Down? Acceleration is a vector. Acceleration does not provide any information about the motion, but only about how the motion changes. It is not possible to tell how fast an object is moving or in which direction from
Can You Travel At A Negitive Relativistic Speed? You cannot travel a negative speed. Can you move in a negative direction? An object which moves in the negative direction has a negative velocity. If the object is speeding up then its acceleration vector is directed in the same direction as its motion (in this case,
At Which Time Does The Acceleration Have The Greatest Positive Value? At which time does the acceleration have the greatest positive value? (b) Maximum positive value of acceleration will occur when rate of change of velocity in increasing sense (slope of the velocity-time curve) is maximum positive. From the figure we see that this occurs
Can Velocity Be Negative? Can velocity be negative? Velocity includes both speed and direction, thus velocity can be either positive or negative while speed can only be positive. Another way to say this is that speed is the absolute value of velocity. How can velocity be negative and zero? If an object or body is
Can The Sign Of The Acceleration Ever Be Positive For An Object That Is Slowing Down? Can the sign of the acceleration ever be positive for an object that is slowing down? In Example B, the object is moving in the negative direction (i.e., has a negative velocity) and is slowing down. According to our
Can You Have A Negative Velocity And Negative Acceleration? Can you have a negative velocity and negative acceleration? A negative acceleration means that the change in the velocity points in the negative direction. For example, the velocity could be in the positive direction and the object slowing down or the velocity could be in the
What Does Constant Acceleration Look Like On A Graph? What does constant acceleration look like on a graph? Constant acceleration means a horizontal line for the acceleration graph. The acceleration is the slope of the velocity graph. Constant acceleration = constant slope = straight line for the velocity graph. What does constant acceleration look like
Does Negative Acceleration Always Mean An Object Is Slowing Down? Does negative acceleration always mean an object is slowing down? If you always choose the current direction of motion as positive, then an object that is slowing down will always have a negative acceleration. What does it mean when an acceleration is negative? If the
Does A Negative Acceleration Mean An Object Is Slowing Down? Does a negative acceleration mean an object is slowing down? 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. Does a negative acceleration always mean an object
Can An Object Reverse Its Direction Of Travel? Answer: Yes, an object with constant acceleration reverses its direction of travel. This can be explained by considering following example. Example: A body thrown to upper direction will change its direction after reaching the maximum height, but the acceleration due to gravity is always constant in this