A8.10×10^3 ‑kg car is travelling at 25.8 m/s when the driver decides to exit the freeway by going up a ramp. after coasting 3.90×10^2 m along the exit ramp, the car's speed is 13.1 m/s, and it is ℎ=12.5 m above the freeway. what is the magnitude of the average drag force exerted on the car?

The magnitude of the average drag force is 2412.34 N.

Explanation:

Given that,

Mass of car

Velocity v = 25.8 m/s

Distance

Speed of car = 13.1 m/s

Height = 12.5 m

We need to calculate the magnitude of the average drag force

Using equation kinetic energy

Where, = initial velocity

= final velocity

h = height

g = acceleration due to gravity

=drag force

m = mass of the car

d = distance

Put the value into the formula

Hence, The magnitude of the average drag force is 2412.34 N.

work: w = fd (given)

work done by chet   =50*1 = 50 j

work done by mika =40*2 = 80 j

work done by sara =30*1.5 = 45 j

work done by bill =60*0.5 = 30 j

students in order from the greatest amount of work done to the least is mika> chet> sara> bill

hence option (b) is correct.

the assestment will probley apele with cause and effect