The formula for speed and distance problems is speed = distance / time. This formula can be used to calculate the speed of an object when the distance and time it traveled are known.
To convert units in speed and distance problems, you can use unit conversion factors. For example, to convert kilometers to miles, you can multiply the distance in kilometers by 0.6214 to get the distance in miles.
Speed and velocity are often used interchangeably, but they have different meanings. Speed is the measure of how fast an object is moving, while velocity is the measure of how fast an object is moving in a specific direction.
To solve for time in a speed and distance problem, you can rearrange the formula to time = distance / speed. This will give you the time it takes for an object to travel a certain distance at a given speed.
In most cases, speed and distance cannot be negative in a problem. However, in some cases, if the object is moving in the opposite direction, the speed or distance can be represented as negative. It is important to pay attention to the direction of the object's movement when solving speed and distance problems.