Question

what is
1)velocity,
2)acceleration,
3)what is their formula
4) what is meant by scalar and vector quantities
5)base quantities
6) provide the formula


guys plz explain me in simple language

Answer 1

Velocity

Velocity, on the other hand, is the direction in which the object is moving. It is the rate at which the object is changing its position. Velocity is a vector quantity, meaning it consists of two fundamental characteristics. It can be described by both- a numerical value as well as by the direction.
Velocity= (Change in distance) / (change in time)

Let us take an example: A car is going on the highway at the speed of 60 km/hr. Maybe at this particular time the car is being driven at this speed, but it may change its speed later. But here, we do not know the direction at which the car is being driven. But if we say that the car is moving at 60 km/hr in a northern direction, then we know that the Velocity is 60 km/hour north.

Acceleration

Here comes a twist in the story- Acceleration. Acceleration is the measurement of how much the Velocity of an object changes at a certain point of time, which is usually in 1 second. Thus, the Velocity of a moving object can either increase or decrease over time.

So, the car is moving at a speed of 60 km/hour north. The driver pushes down on the gas pedal and the car starts moving faster and faster. This is the change in Velocity and is known as Acceleration.

Acceleration= (change in velocity) / (change in time)

Let us look at another example. Suppose you are riding a bicycle. You start off by pushing the pedals slowly and after some time you begin to push the pedals really fast. So you are accelerating to increase your speed.

Acceleration is measured in meters/ second squared.