Engineer Science Banding Essay Example | Topics and Well Written Essays - 1500 words

Engineer Science Banding - Essay Example S = 453.33 V (avg) = 3.33 rev/sec Where, V is angular speed S is the number of revolutions Q. no 4 (Solution) (A) Work done = Force * height Torque = force * radius W = 357.14 * 28 250 = force * 700/1000 W = 12.755 Joule 250 = force * 0.7 250 / 0.7 = force Force = 357.14 N (B) 2as = v (final)2 - v (initial)2 As we know that in motion under gravity a is replaced by g Where,a = accelerationg = gravity now, 2gs = v (final)2 - v (initial)2 2 * 9.8 * 28 = v ( final)2 - 0 192.08 = v (final)2Taking square root on both sides V (final) = Linear velocity = 13.85 m/s (C) V (final) = v (initial) + g * t 13.85 = 0 + 9.8 * t 13.85 / 9.8 = t t = 1.41 sec Q. no 2 (solution) (a) V (final) = v (initial) + a * t Force = mass * acceleration 480 = 0 + a * 240 F = 1400 * 2 480 / 240 = a F = 2800 N a = 2 Now,Torque = Force * radius Torque = 2800 * 0.75 Torque = 2100 N-m (B) Whenever a machine carries out a sharing operation, which uses some of... (B) Whenever a machine carries out a sharing operation, which uses some of the energy of cascaded initial system, there is a definitely change in speed (rev/min) occur. Now, we can estimate this with the help of the given table.