tamiabrothers05 tamiabrothers05 20-05-2024 Physics Answered A mass (m = 3 kg) slides along a frictionless rail. Point 1 is 1.5 m above Points 2 and 3. Point 4 is 0.70 m above Points 2 and 3. If the initial velocity of the mass is 0.5 m/s, the speed at Point 4 is about...