A car (of mass 1500 kg) and a small truck (of mass 2000 kg) ...

[Jramos095]

A car (of mass 1500 kg) and a small truck (of mass 2000 kg) collide suddenly at right angles at an icy intersection.
 
  The car was originally traveling eastward at 20.0 m/s and the truck was traveling northward at 20.0 m/s just before the collision took place. What is the speed of the combined wreck just after the collision if the vehicles become enmeshed?

Question 2

An electron moves with a speed of 3.0  104 m/s perpendicular to a uniform magnetic field of 0.40 T. What is the magnitude of the magnetic force on the electron? (e = 1.60  10-19 C)
 
  A) 4.8  10-14 N
  B) 1.9  10-15 N
  C) 5  10-20 N
  D) 0 N
  E) 2.2  10-24 N

[joanwhite]

Answer to Question 1

14.3 m/s

Answer to Question 2

B

[Jramos095]

Thanks for the timely response, appreciate it

[raenoj]

Wow, this really help