Question

pls help me............​

Answer 1

Answer:

the average speed is

$\frac{2x}{ \frac{x}{40} + \frac{x}{50} } = \frac{2 \times 40 \times 50}{90} = 44.44 \: \: km.h {}^{ - 1}$

where ..X=the distance between two places....

uniform velocity

• if the distance covered by a particle or an object or mass is same in with respect to a definite interval of time then ..the body will be called is in motion with uniform velocity.

variable velocity

• if the velocity of an object or body changes with time ..then the body is in motion with variable velocity....