Answer Happy

CONFIDENTIAL QUESTION 4 [25 MARKS] a) Crate A with the weight of m, 15 kg is placed on an inclined platform at C. It is then released and begin to slide down before hitting Crate B at the end of platform which is originally at rest. Weight of Crate B is ma = 10 kg. The coefficient of restitution between the two crates is e=0.3 and the coefficient of kinetic friction between the platform and each crate is u=0.4. Determine; i) 11) iii) the velocity of Crate A just before the impact with Crate B, the velocities of both Crate A and Crate B just after their impact, and the distance Crate B slides to the left before coming to rest. Crate B (10 kg) The mass of all pulleys is negligible. CONFIDENTIAL Crate A (15 kg) Figure 4 (a) i) the speed of each block, VA and vs at 1 = 3 s, and ii) the tension T' developed in the cable. 5 212211/DRM1233 C b) A lifting and balancing system comprises mass blocks, pulleys and cable as indicated in Figure 3 (b). When Block A is travelling in the downward direction with a speed of v₂ = 2 m/s, determine; h=6m [12 Marks] [13 Marks] [CO4, PO3, C4] 212211/DRM1233
b) A lifting and balancing system comprises mass blocks, pulleys and cable as indicated in Figure 3 (b). When Block A is travelling in the downward direction with a speed of v4= 2 m/s, determine; i) 11) the tension 7' developed in the cable. the speed of each block, v4 and va at t = 3 s, and The mass of all pulleys is negligible. CONFIDENTIAL 10kg 5 8kg Figure 4 (b) [13 Marks] [CO4, PO3, C4] 212211/DRM1233