Work is done when a force is applied to an object moves that object. the work is calculated by multiplying the force by the amount of movement of an object
I believe it is acceleration
Answer:
e.26m/s
Explanation:
Vf=Vi+at (1)
Vf=9j+(2i-4j)t
X= X₀+at
now, in the i direction
15=O+2t or t=7.5 when x position is 15
Lets put that into the (1) equation, solve for Vf.
Vf=9j+(2i-4j)7.5
Vf= 15i - 21j
Speed=
Vf= 25.8 m/s
I believe that it is a boy but if they would like to be classified as a girl or a boy their decision needs to be respected