plz answer this ques...best 1 will b mark BRAINLIEST
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So by Pythagoras theorem , change in velocity is given by the hypotenuse As :
__________
|Δv| = √( v1^2) +(v2^2)
__________
|Δv| = √( 20^2) + (20^2)
= 20√2 m/s .
The direction is south -west ... hope you understand...plz mark brain list if u get answer
__________
|Δv| = √( v1^2) +(v2^2)
__________
|Δv| = √( 20^2) + (20^2)
= 20√2 m/s .
The direction is south -west ... hope you understand...plz mark brain list if u get answer
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imstranger1234:
how will direction come south west??
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4
Initial velocity, u = 20 m/s due north = 20j m/s
Final velocity, v = 20 m/s due west = -20i m/s
Change in velocity = v - u =( -20i - 20j) m/s
Magnitude = |-20i - 20j| = √{(-20)^2 - (-20)^2} = √800 = 20√2 m/s
Direction is south west.
Answer is D.
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