physics problem...help please?
A motorist drives along a straight road at a constant speed of 15 m/s^1. Just as she passes a parked police officer, the officer begins to accelerate at 2.00 m/s^2. When and where does the officer catch the motorist?
A motorist drives along a straight road at a constant speed of 15 m/s^1. Just as she passes a parked police officer, the officer begins to accelerate at 2.00 m/s^2. When and where does the officer catch the motorist?
Comments
position equation: d=.5at^2+vt+d(i)
15x=.5x^2
set the position equations equal to each other and solve for x
x=15 seconds after passing
position of motorist: 15x subsitute x for 15
position= 15*15 or 225
this case may seem a tad confusing because it just so happens that the speed of the motorist is the same as the time it takes to catch the motorist. this is not usually the case