5.3.4. [Level 2] A 4 kg triangular body m rests on a frictionless, horizontal surface. At t = 0, a 1 kg mass m is released from rest as shown. It's located just slightly to the left of center so that it can slide down the left side. Assume zero friction between m and m2. a. Where will the mass contact the ground? b. How fast will the mass be moving when it hits the ground? E5.3.4 2 m 30 30 m2 60 I 60% O