1.

AnobjectA is movingwith5 m/sandB ismovingwith20m/sin thedirection. (positivex-axis)findvelocityof Awithrespect to B .

Answer»

SOLUTION :(a) `VEC(V)_(B) = 20hat(i) m//s , vec(V)_(A) = 5hat(i)m//s`,
`vec(V)_(B) - vec(V)_(B) = 15 HAT(i) m//s`
(b) `vec(V)_(B) = 20 hat(i) m//s, vec(V)_(B) = 5hat(i) m//s`,
`vec(V)_(AB) = vec(V)_(A) - vec(V)_(B) = -15 hat(i) m//s`


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