A person moves 30m north and then 20 m towards east and finally 30✓2 m in South West direction . The displacement of the person from the origin will be
Priya999:
tha eanswer is 30✓2 m
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HEYA!!!
HERE IS YOUR ANSWER,
> The man went north 30m to A.
> Then he went 20m west to C.
> Then he went all the way 30 root 2 m to D.
> Complete the rectangle ABCE.
> We can see that AB=CE=30m.
> By Pythagorean theorem,
> DE = square root of (DC^2 - CE^2)
= square root of (1800 - 900)
= square root of 900 = 30.
> Therefore, DE=30m.
But, DE = DA+AE
> DA+AE=30
> DA+20=30
Therefore, DA = 10m west from origin.
HOPE IT HELPS YOU,
THANK YOU.☺️☺️
HERE IS YOUR ANSWER,
> The man went north 30m to A.
> Then he went 20m west to C.
> Then he went all the way 30 root 2 m to D.
> Complete the rectangle ABCE.
> We can see that AB=CE=30m.
> By Pythagorean theorem,
> DE = square root of (DC^2 - CE^2)
= square root of (1800 - 900)
= square root of 900 = 30.
> Therefore, DE=30m.
But, DE = DA+AE
> DA+AE=30
> DA+20=30
Therefore, DA = 10m west from origin.
HOPE IT HELPS YOU,
THANK YOU.☺️☺️
Answered by
5
HOPE THIS WILL HELP YOU ☺☺☺☺☺
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