contestada

A sports car of mass 1000 kg can accelerate from rest to 27 m/s in 7.0 s. what is the average forward force on the car?

Respuesta :

Cetacea

The average force on the car=3857 N

Explanation:

mass of car= 1000 kg

initial velocity= Vi=0

Final velocity= Vf=27 m/s

time= t= 7 s

using the kinematic equation,

Vf= Vi + at

27=0+a (7)

a=3.857 m/s²

Now the force is given by F= m a

F=1000 (3.857)

F=3857 N