Game Development Reference
In-Depth Information
9. Consider the car crash between Grant and Kari in
Section 12.4.1.
Calculate
the magnitude of the collision impulse, only this time instead of assuming
a perfectly inelastic collision, use a coe
cient of restitution of e = 0.1.
(Assume a contact normal of 20
o
west of south.) What are the resulting
velocities of the two cars?
10. How does the monkey in Figure 12.21 stay balanced on the tightrope? How
does the bend in the bar help?
Figure 12.21
How does this monkey stay
balanced?
11. Two cylinders have the same shape and mass. One is hollow, and the other
is solid with uniform density. Which do you expect would be harder to
roll?
12. The mass distribution of a truck is approximated by using three boxes for
the body and four cylinders for the wheels, as shown in Figure 12.22.
Figure 12.22
Using primitives to approximate the
distribution of mass in a truck
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