A 1210 kg car is driving NE (at 45.0°) at 15.2 m/s when it is

struck by a moving 1540 kg car.

Afterward, they stick together and

move directly east (at 0°) at 23.3

m/s. What was the x-component

of the second car's initial velocity?

Please help

Explanation:

From the question we are told that

Mass of car        

Velocity of car  

Mass of Truck  

Final velocity    

Generally the the equation of the law of conservation of momentum is mathematically given by

Given the x direction

The x-component  of the second car's initial velocity is

if the person is shown to have +90n, then ans is -10n.

if the person is shown to have -90n, then ans is +10n.