Question

Two stars A and B move away from Earth in opposite directions with velocity 0.9c
and 0.8c respectively. Find the speed of star B with respect to star A.

Answer 1

Vof B wrt A = V of B - V of A

= 0.8c - (-0.9c)

= 0.8c+0.9c = 1.7c

Answer 2

Answer:

The observer's speed on star A is equal to $0.988$C in relation to

star B.

Explanation:

You can express the observer's relative speed on star A as

$u=\frac{V_{A}-V_{B} }{1-\frac{V_{A}-V_{B} }{C^{2} } }$

Where,$C^{2} =0.72, V_{A}=0.8, V_{B}=-0.9.$

Relative speed describes the speed at which one moving body moves in relation to another.

When moving in the same direction, the difference between two mechanical bodies defines their relative speed.

But when two bodies move across the country counter-clockwise, the relative speed is calculated by averaging their individual speeds.

The speed of one moving body in comparison to another is referred to as "relative speed."

The relative speed of two bodies moving in the same direction is determined by the speed differential between them.

To learn more about speed, visit:

https://brainly.in/question/47776531

To learn more about Direction, visit:

https://brainly.in/question/32459801

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