Question

physics

Answer 1

@IrishBoy123
@Michele_Laino

Answer 2

your qu 1

"
1 An old car is traveling down a long, straight, dry road hill (angle of incline 7*) at 25.0 m/s when the driver slams on the brakes, locking the wheels. The car comes to a complete stop after sliding 44 m in a straight line. If the car has a mass of 755 kg, what is the coefficient of kinetic friction between the tires and the road?
"

do you know how to do these?

Answer 3

do you want to use forces or energy?

Answer 4

force

Answer 5

@SolomonZelman

Answer 6

@Michele_Laino

Answer 7

k

Answer 8

hi

Answer 9

by the time the ting comes to a halt, it has lost kinetic and potential energy. the is lost friction, or you can say that the friction has don work on the car.

but looking at it in terms of forces, you can apply F = ma. the arresting force is friction. gravity is pushing the car down the slope

so \(mg \sin \theta -\mu mg \cos \theta = m a\)

can you run with it from there?!