iac0b said:
Here's a hint: What does the slope of the curve tell you?iac0b said:
Acceleration is the rate at which an object changes its velocity over time. It is a vector quantity, meaning it has both magnitude and direction. In simple terms, acceleration measures how quickly an object is speeding up, slowing down, or changing direction.
Acceleration is calculated by dividing the change in velocity by the change in time. The formula for acceleration is a = (vf - vi) / t, where a is acceleration, vf is final velocity, vi is initial velocity, and t is time.
A negative acceleration, also called deceleration, means that the object is slowing down. This can happen when an object is moving in the opposite direction of its initial velocity, or when it is decreasing in speed over time.
To find negative acceleration on a line graph, look for a downward slope or a decrease in the slope of the line. This indicates that the object is slowing down, and the steeper the slope, the greater the deceleration.
Yes, an object can have negative acceleration and positive velocity at the same time. This can happen when an object is slowing down in the positive direction. For example, a car moving forward at 30 m/s can have a negative acceleration of -5 m/s^2, meaning it is slowing down, but it still has a positive velocity of 25 m/s.