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What else can I help you with?
Is costheta is a vector?
No. Cos theta (Cos θ) is a trigonometric function. A vector is any physical quantity which has both magnitude and direction. For example, Displacement. Displacement has a magnitude like 240m or 0 or 13 m, etc. It also depends on the direction. If an object moves along the positive direction of x-axis, then the displacement will have a positive sign and if it moves along the negative direction of x-axis, then displacement will be negative. Thus, it has both direction and magnitude and so is a vector. Cos theta is a trigonometric function, strictly speaking.
What is the measured value always positive from one point to another?
The measured value is always positive from one point to another when it represents a distance, as distance cannot be negative. This is because distance is typically defined as the scalar quantity that expresses how much space is between two points, irrespective of direction. In contrast, other measurements like displacement can be positive or negative depending on the reference point and direction.
Why positive displacement are called positive?
Because it has been decided that the right and upwards directions in a plane are the positive directions and the left and downwards are negative. Originally, the decisions were arbitrary but conventionally agreed (in the same sort of way that North is usually shown at the top of a map). Any displacement in a positive direction is called a positive displacement.
Why two negative multiplication equal positive number?
In mathematics, multiplying two negative numbers results in a positive number due to the rules of signs. This can be understood through the concept of opposites: a negative number represents a direction opposite to positive. When you multiply two negatives, you are essentially reversing the direction twice, which brings you back to the original positive direction. Thus, the product of two negative numbers is positive.
A -2 displacement towards the north represents a positive displacement towards the south?
Indeed it is.
Is displacement considered positive or negative in the context of physics?
In physics, displacement can be either positive or negative depending on the direction of the movement. Positive displacement indicates movement in one direction, while negative displacement indicates movement in the opposite direction.
Is displacement negative in physics?
In physics, displacement can be positive, negative, or zero, depending on the direction of the movement. Positive displacement means the object has moved in a certain direction, negative displacement means the object has moved in the opposite direction, and zero displacement means the object has not moved at all.
If displacement is decreasing then velocity is?
If displacement is decreasing, then velocity can be positive, negative, or zero, depending on the direction of motion. If the object is moving in the positive direction, a decreasing displacement may result in a positive velocity. If the object is moving in the negative direction, a decreasing displacement may lead to a negative velocity. If the object is stationary and its displacement is decreasing, the velocity is zero.
Can a position time graph tell in which directionthe displacement of an object is?
Yes. If the slope is positive, the direction of the displacement is positive (e.g. north, east, or right). If the slope is negative, the direction of the displacement is negative (e.g. south, west, or left).
What does area under velocity time graph show?
The area under a velocity-time graph represents the displacement of an object. If the area is positive, the object is moving in the positive direction; if negative, the object is moving in the negative direction. The steeper the slope of the graph, the greater the velocity.
Can distance and displacement be negative?
Yes it can. If distance and displacement is positive then it means it's going forwards. If you get a distance or displacement that is negative then means it's going the other direction, backwards.
How can displacement be negative?
Displacement is a vector quantity, which means it has a magnitude (size) and a direction, compared to a scalar quantity which only shows size. A negative displacement simply means that the person or object is going in a negative direction, or returning.ORYes it can be -ve because with displacement, sign indicates direction. Usually right and up are designated as positive while left and down are designated as negative, but this can be changed as long as one is consistent.So in most cases, if the displacement is negative it means you are moving in the opposite direction/backwards.
Is it possible to have negative value in speed and displacement?
No, in physics, speed and displacement are scalar quantities that represent magnitudes and cannot be negative. However, the direction of motion can be indicated by assigning a negative or positive sign to the speed or displacement value.
If positive 12 represents 12 kilometers what does negative 16 represents?
Negative 16 would represent 16 kilometres in the opposite direction.
How do you achieve negative velocity?
If you have a Displacement - time graph, the velocity at a certain point equals displacement over time, displacement is a vector quantity thus is affected by direction so when it has a negative value the velocity has a negative value. and if your still thinking about it, check out this thought: "negative velocity is positive velocity in the other direction"
Is the work done by friction always negative?
No, the work done by friction can be either positive or negative, depending on the direction of the force and the displacement of the object.
What is the difference between positive and negative work?
Positive work occurs when a force is applied in the same direction as the displacement of an object, resulting in energy being transferred to the object. Negative work occurs when a force is applied in the opposite direction of the displacement, resulting in energy being taken away from the object.
