B3. An object (M= 10.0kg) initially at rest explodes into two pieces (m1 = 3.5kg, m2 = 6.5kg) with velocities v1 and v2. (a) Draw a diagram illustrating the situation “before” and “after” the collision. In your diagram, assume v1 is in the positive x direction.

(b) If the speed of m1 after the explosion (|v1|) is 7.50m/s, what is the velocity of m2 (v2) after the explosion?