The position of a body, moving in a plane, changes from origin to 14î + 11ĵ in 20s. What is the velocity of the body?
A. 0.7î + 0.55ĵ
B. 0.55î + 0.7ĵ
C. 0.3î + 0.7ĵ
D. 0.3î
Answer:A
The position of a body, moving in a plane, changes from origin to 14î + 11ĵ in 20s. What is the velocity of the body?
A. 0.7î + 0.55ĵ B. 0.55î + 0.7ĵ C. 0.3î + 0.7ĵ D. 0.3î