# calc

A car is heading northwest at 80 km/h and a truck is heading east at 60 km/h. Determine the velocity of the truck relative to the car.

1. 👍 0
2. 👎 0
3. 👁 92
1. Vrel = Vtruck - Vcar
That must be treated as a vector equation. Break it up into x (east) and y (north) components.

Vrel,x = 60 -80 sin45 = 3.4 km/h
Vrel,y = 0 - 80 cos 45 = -56.6 km/h

1. 👍 0
2. 👎 0
posted by drwls

## Similar Questions

1. ### Calculus

A car is heading northwest at 80 km/h and a truck is heading east at 60km/h. Determine the velocity of the truck relative to the car.

asked by Anonymous on May 4, 2010
2. ### Calculus

A car is heading northwest at 80Km/h and a truck is heading east at 60 Km/h. Determine the velocity of the truck relative to the car.

asked by Bobby on May 4, 2010
3. ### Physics

Two cars collide as shown in the figure. The yellow car is initially heading east and has a mass of 1000 kg. The red truck is initially heading north and has a mass of 2000 kg. The two vehicles collide, stick together, and veer

asked by David on November 10, 2015
4. ### Math

A car is heading east toward an intersection at the rate of 40 mph. A truck is heading south, away from the same intersection at the rate of 60 mph. At what rate is the distance between the car and the truck changing when the car

asked by eve on July 31, 2011
5. ### Math

A car is heading east toward an intersection at the rate of 40 mph. A truck is heading south, away from the same intersection at the rate of 60 mph. At what rate is the distance between the car and the truck changing when the car

asked by eve on July 31, 2011
6. ### physics

A highway curve forms a section of a circle. A car goes around the curve. Its dashboard compass shows that the car is initially heading due east. After it travels 620. m, it is heading 30.0° south of east. Find the radius of

asked by j on September 7, 2016
7. ### Physics with Calc

A highway curve forms a section of a circle. A car goes around the curve as shown in the helicopter view of Figure P1.48. Its dashboard compass shows that the car is initially heading due east. After it travels 840 m, it is

asked by Charlotte on July 17, 2013
8. ### C Programming

How do you reprompt after the user inputs a wrong number into the program in C Programming? Loop structure? i.e. I want my code to do this: Enter a Compass Heading: 500.7 Please Input a Compass Heading between 0 and 360 Degrees.

asked by gnozahs on September 30, 2009
9. ### physics

A car is traveling at 100 km/h, due northwest. The driver puts on the brakes and turns the corner. Four seconds later, he is heading east at 50 km/h. What is the average acceleration

asked by ash on October 2, 2014
10. ### Science

Waste created by man can be classified under Heading X (eg torn book, mouldy bread, rotten apple) and Heading Y (plastic bag, biscuit tin, broken bulb). What is Heading X and Heading Y?

asked by Jenny on April 6, 2010

More Similar Questions