A car heading north collides at an intersection with a truck heading east. if they lock together and travel 28 m. s at 46 degrees north of east just after the collision, how fast was the car initially traveling? assume that the two vehicles have the same mass.

A) 30 m/s

B) 80 m/s

C) 20 m/s

D) 40 m/s

C) 20 m/s

Explanation:

The collision of the car and truck will give a single resultant velocity due to equal masses.

We'll treat this question as a vector question.

The velocity profile will form a right angle triangle.

To calculate the velocity of the car

Let the velocity be x

Sina = x/28

Sin46 = x/28

0.7193*28 = x

20 = x

X = 20 m/s