Question

6 Define speed of body. Mention its
C.G. S and SI unit​

Answer 1

Speed

The distance covered by moving body in unit time is called speed of the body.

$\purple{\boxed{\bf{Speed=\frac{Distance}{Time}}}}$

C.G.S. unit of speed is cm/s

S.I. unit of speed is m/s

It is a scalar quantity.

$\rule{190}{1}$

Additional Information

Average Speed

Average speed is defined as the ratio of total distance covered and total time taken.

$\pink{\boxed{\bf{Speed=\frac{Total\ Distance\ covered}{Total\ Time\ Taken}}}}$

Velocity

The change in position or displacement divided by the time interval is called velocity.

Acceleration

The rate of change of velocity is called acceleration.

Momentum

The product of mass and velocity of body at given time is called the momentum of body at that time.