# As physics

The drag force acting on a car travelling at a speed v is given by the equation F=kAv^2
Where A is the area of the front of the car.
Show that a suitable unit for the quantity k is kgm-3.
F= kgms-2
or
A=m2
V=ms-1

Which is K=kgm-3

I am confused could someone show the working out clearly involving all steps and equations used.

1. 👍 0
2. 👎 0
3. 👁 48

## Similar Questions

1. ### Physics... URGENT !!!!

A 66.7-kN car is travelling at 66.5 mph when the driver decides to exit the freeway by going up a ramp. After coasting 418 m along the exit ramp the car\'s speed is 28.9 mph, and it is h = 13.1 m above the freeway. What is the

asked by Ashley on November 6, 2012
2. ### As physics

The drag force acting on a car travelling at a speed v is given by the equation F=kAv^2 Where A is the area of the front of the car. Show that a suitable unit for the quantity k is kgm-3. Mark scheme answer: F= kgms-2 or A=m2

asked by cylinder on November 9, 2017
3. ### College Physics

A car of mass 1000 kg is traveling at a constant 25.0 m/sec along a straight, level highway. There is a force of thrust acting on it in the forward direction (the direction the car is moving) of 3000 N. There are drag forces and

asked by jay on July 12, 2017
4. ### Physics

A car of mass 1000kg is travelling along a straight flat road at a constant speed of 30.0ms^-1. It then accelerates with constant acceleration of 3.00ms^-2 for 10.0s, after which it continues to travels at a constant speed.

asked by Saphina Almatary on October 17, 2016
5. ### physics (urgent)

A car of mass 1000kg is travelling along a straight flat road at a constant speed of 30.0ms^-1. It then accelerates with constant acceleration of 3.00ms^-2 for 10.0s, after which it continues to travels at a constant speed.

asked by Saphina AlMatary on October 18, 2016
6. ### Physics

If a car is travelling with a constant speed of 5.53 m/s in the Westward direction, what is the resultant force acting on it? Ignore friction

asked by Logan on September 1, 2011
7. ### Physics HW Help, Please

A 76.3-kN car is travelling at 66.5 mph when the driver decides to exit the freeway by going up a ramp. After coasting 418 m along the exit ramp the car\'s speed is 27.3 mph, and it is h = 10.7 m above the freeway. What is the

asked by Michael on November 12, 2012
8. ### Physics

A 76.3-kN car is travelling at 68.7 mph when the driver decides to exit the freeway by going up a ramp. After coasting 355 m along the exit ramp the car\'s speed is 30.1 mph, and it is h = 14.3 m above the freeway. What is the

asked by Help on April 29, 2013
9. ### Physics

A car with its passengers have a total mass of 4200kg .the car is travelling along a horizontal road when it moves ,it experiences a forward driving force of magnitude F newtons and a constant resistance force(opposite to driving

asked by Ali on November 19, 2016