Question

A motorcycle has a steady speed of 3m/s. This means that the distance travelled by the rider in 1 second is _ _ _ _ _ _ _ .

Answer 1

Understand by the term speed of a body. Speed of a moving body is the distance travelled by it in one unit of time. When a body is travelling with steady speed, its speed is constant with time.

Complete answer:
We understand the motion of a body by knowing its speed. Speed is defined as the rate of distance travelled with respect to time. Therefore, speed of a body is the distance travelled by the body in one unit of time.
Let us now understand what is meant by a steady speed. When the speed of a moving body is constant with time, we say that the body is travelling with a steady speed. This means that for equal intervals of time, the distance travelled by the body is constant.
If we consider the time interval to be equal to 1 second, then after every one second the body will cover a distance equal to the distance travelled in the previously second.
In other words, at a steady speed the distance travelled per second is constant.
It is given that the motorcycle is travelling with a steady speed of 3m/s. This means that it covers a distance of 3 metres per second.
This means that the distance travelled by the rider in 1 second is 3 meters.

Note:
Do not get confused between speed and velocity.
We already know that speed is the distance travelled by a body in one unit of time.
Velocity is the displacement of the body in one unit time.
Speed is a scalar quantity. Whereas velocity is a vector quantity.