An aircraft has a mass of 3.10 x 105 kg. At a certain instant during its landing, its speed is 48.2 m/s. If the braking force is 3.40 x 105 N, what is the speed of the airplane 11.9 s later?

Question

turingtest · Answer

Newton:$$F=ma$$Kinematic:$$v=vi+at$$we can get the acceleration of the plane from the first equation, and plug that and the given numbers into the second one to find the velocity after 11.9 seconds
 (note that acceleration will be in the negative direction here)

anonymous · Answer

do i need to do any conversion of units here?

anonymous · Answer

between mass and force

turingtest · Answer

Kg, m, m/s, and N
all SI base units, so nope

anonymous · Answer

but i got 61.2m/s

anonymous · Answer

and the computer anint accepting my answer

anonymous · Answer

i found acceleration,then substituted it into the equation