Question

what is speed ? Explain​

Answer 1

$\huge\underline\bold\blue{Question}$

what is speed ?

$\huge\underline\bold\red{Answer}$

Speed is defined as the rate of change of position of an object in any direction.

Speed is measured as the ratio of distance to the time in which the distance was covered. Speed is a scalar quantity as it has only direction and no magnitude.

Types of Speed

There are four types of speed and they are:

• Uniform speed
• Variable speed
• Average speed

⇒Uniform speed: A object is said to be in uniform speed when the object covers equal distance in equal time intervals.

⇒Variable speed: A object is said to be in variable speed when the object covers a different distance at equal intervals of times.

⇒Average speed: Average speed is defined as the uniform speed which is given by the ratio of total distance travelled by an object to the total time taken by the object.

Hope it helps you :)

Answer 2

Answer:

• speed is the distance covered by a object divides by time
• speed = distance / time
• the si unit of speed is metre per second
• but it can also be represented in km/h , m/h , etc
• speed is a Scalar quantity