- #1
thereddevils
- 438
- 0
Homework Statement
Footballer P kicks a ball to another footballer Q with an initial speed of 10 m/s in the direction of unit vector j.Because there is resistance of the field, the ball experiences a retardation of magnitude of 1 m/s^2. By assuming the position of player P as the origin and the movement of the ball as always horizontal and in a straight line
find the position of the ball at time , t.
Homework Equations
The Attempt at a Solution
a= -1
[tex]v=\int a dt=-t+c[/tex]
when t=0 , v=10
therefore , v (resistance)= -t+10
so nett velocity of the ball = 10-(-t+10)=t
And in vector form , v=t^2 j
Am i correct ?