Question

An object is moving with a velocity of 2 ms${}^{-1}$. Its velocity changes at a uniform rate to 5 ms${}^{-1}$. The average velocity of the object is

• A. 3 ms${}^{-1}$
• B. 3.5 ms${}^{-1}$`
• C. 4 ms${}^{-1}$
• D. 5.5 ms${}^{-1}$

Answer 1

The correct option is B 3.5 ms${}^{-1}$`

Answer is A.
The average velocity is given as $\frac{(v_1+v_2)}{2}=\frac{(2+5)}{2}=3.5m/s.$
Hence, the average velocity = 3.5 m/s.