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Q.

y component of velocity is 20 and x component of velocity is 10. The direction of motion of the body with the horizontal at this instant is

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a

450

b

tan-1(12)

c

tan-1(2)

d

00

answer is A.

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Detailed Solution

Question Image

vy  =  20  and  vx = 10

∴    Velocity  v→ = 10i^+20j^

Direction of velocity with x axis

tanθ = vyvx =2010 = 2

∴     θ  = tan-1(2)

 

 

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y component of velocity is 20 and x component of velocity is 10. The direction of motion of the body with the horizontal at this instant is