Save the scene. The scene file needed is called gravity_bricks.mb. Run the simulation. You may want to give yourself plenty of frames to have it play out. The results are devastating and a little unclear, but you can see in Figure 4b that some of the bricks are now landing on the ground plane.

[FIGURE 4b] Running the simulation shows that the bricks are now colliding with the ground plane.

A few adjustments will make for a better-looking animation. Select the BLayer1 node in the Outliner window. In the Attributes menu under the Explosive tab set the Magnitude, Size, and Velocity parameters to those shown in Figure 5. Let’s also move the position of the explosive force. Under the BombLocator1 tab, set the position parameters to those of Figure 6. Running the simulation should have a much more effective result and should look similar to Figure 7.

[FIGURE 5] Adjusting the explosive’s Magnitude, Size, and Velocity.	[FIGURE 6] Repositioning the explosive for a more skyward thrust.

[FIGURE 7] With the adjustments, the ground plane collides more successfully with the bricks.