Question

First, find the magnitude of v⃗ , that is, the speed v of the two-car unit after the collision.

Answer 1

The magnitude of v⃗ is {sqrt(m1v1)2+(m2v2)2/ m1+m2}, that is, the speed v of the two-car unit after the collision.

What is collision?

• In physics, collisions occur when particles, aggregates of particles, or solids come close to each other, interact and affect each other.
• Collisions are of three types Fully elastic collision, inelastic collision and Perfectly inelastic collision.
• Multiply the mass of the second object by its velocity.
• For example, if the weight is 1,000 and the speed is -30 meters per second, then its momentum is 30,000 kg meters per second.
• Add the two velocities together to determine  the direction the object will move after a collision.
• So the formula for determining the size of a vector (in 2D space) is v = (x, y).|v| = √(x2 + y2).
• This formula is derived from the Pythagorean theorem.
• The formula  V = (x, y, z) that determines the size of a vector (in 3-dimensional space) is:|V| = √(x2 + y2 + z2)

To learn more about collision from the given link :

brainly.com/question/13138178

#SPJ4