Question

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 :

• A. $ {{\tan }^{-1}}(2) $
• B. $ {{\tan }^{-1}}(1/2) $
• C. $ {{45}^{0}} $
• D. $ 0{}^\circ $

Answer 1

Answer: (A)

According to the condition of question $ \tan \theta =\frac{{{\upsilon }_{y}}}{{{\upsilon }_{x}}}=\frac{20}{10}=2 $ $ \therefore $ $ \theta ={{\tan }^{-1}}(2) $