Question

please give the answers fast​

Answer 1

Answer:

1). One millisecond: One millisecond is a thousand of a second. A unit of 10 millisecond may be called a centisecond. One millisecond contains 1000 microseconds.

2). One microsecond : A microsecond is an SI unit of time equal to one millionth.

3). Velocity and speed: Speed is the time rate at which an object is moving along a path whereas velocity is the rate and direction of an objects movement.

4). Velocity x time give us to change the position or distance over time.

5). Displacement and velocity gives us the change of time.

6). 20 km/ 2 hours is equal to 2.77777778 m/ s.

Hope it's helpful.