Question

Two
observers A and B are moving along inclined
plane op and OQ with 5 mls and 4√2 m/s
respectively in a region where rain is falling with
certain velocity. According to observer A rain is falling
horizontally, while according to observation B rain
is falling vertically the actual speed of rain is?​

Answer 1

Answer:

certain

Explanation:

as différence in observations of observers is due to thé Slope thé r walking,it is not thé matter of speed

Answer 2

Given:

Two observers A and B are moving along inclined plane op and OQ with 5 mls and 4√2 m/s respectively in a region where rain is falling with certain velocity.  

To find:

According to observer A rain is falling horizontally, while according to observation B rain is falling vertically the actual speed of rain is?​

Solution:

From given, we have,

Two observers A and B are moving along inclined plane op and OQ with 5 m/s and 4√2 m/s respectively.

According to an observer, A rain is falling horizontally, while according to observation, B rain is falling vertically.

Consider the attached figure while going through the following steps.

From the figure it's clear that the resultant is the velocity of the rain.

So, we get,

V_{R} = √[A² + B²]

V_{R} = √[5² + (4√2)²]

V_{R} = √[25 + 32]

V_{R} = √57

∴ V_{R} = 7.54 m/s

Therefore, the actual speed of the rain is 7.54 m/s