The 20-g bullet is travelling at 400 m/s when it becomes embedded in the 2-kg stationary block. The coefficient of kinetic friction between the block and the plane is 14 = 0.28. (Figure 1) igure 400 m/s 1 of 1 ▾ Part A Determine the distance the block will slide before it stops. Express your answer to three significant figures and include the appropriate units. HÅ ? Value Units Submit Request Answer Provide Feedback

Pilot travels around the vertical curve having a radius of curvature p = 800 m. He has a mass of 71 kg. (Figure 1) Figure Part A V = Determine the maximum constant speed at which the pilot can travel, so that he experiences a maximum acceleration an = 8g = 78.5 m/s². Express your answer to three significant figures and include the appropriate units. HμÅ Value p = 800 m Submit Request Answer Units 1 of 1 ?

It is observed that the skier leaves the ramp A at an angle A = 22° with the horizontal. (Figure 1) Figure m 100 m 1 of 1 B Part A If he strikes the ground at B, determine his initial speed VA. VA = Submit Part B UB= Submit μA Value Determine the speed at which he strikes the ground. Request Answer Provide Feedback μA Value Units Request Answer Ċ Units ? ?

The coefficient of kinetic friction between the60-kg crate and the ground is uf = 0.3. The crate starts from rest, and P = 225 N .(Figure 1) Part A Determine the velocity of the crate when t = 4s Express your answer to three significant figures and include the appropriate units. HẢ v = Value Units Submit Previous Answers Request Answer X Incorrect; Try Again; 3 attempts remaining • Part B Determine the distance the crate travels when 4 s Express your answer to three significant figures and include the appropriate units. Figure HÀ S = Value Units Submit Request Answer 30° Provide Feedback

Part A The 2.2-Mg car increases its speed uniformly from rest to 17 m/s in 40 s up the inclined road. Determine the maximum power that must be supplied by the engine, which operates with an efficiency of e = 0.8. (Figure 1) Express your answer with the appropriate units. HA Pmax = 52.39 kW Submit Previous Answers Request Answer X Incorrect; Try Again Part B Also, find the average power supplied by the engine. Figure 1 of 1 Express your answer with the appropriate units. Pavg = |26.19 kW Submit Previous Answers Request Answer 10 X Incorrect; Try Again

The coefficient of static friction between the 200-kg crate and the flat bed of the truck is 0.25. (Figure 1) Figure 1 of 1 Part A Determine the shortest time for the truck to reach a speed of 65 km/h, starting from rest with constant acceleration, so that the crate does not slip. Express your answer to three significant figures and include the appropriate units. HÅ t = Value Submit Provide Feedback Request Answer Units ? Next >

Item 8 A motor supplies a constant torque M = 6 kNm to the winding drum that operates the elevator. The elevator has a mass of 800 kg, the counterweight C has a mass of 200 kg, and the winding drum has a mass of 600 kg and radius of gyration about its axis of k = 0.6 m. Neglect the mass of the pulleys. (Figure 1) Figure 94°F Sunny D 0.8 m 4 KI 1 of 1 Provi A

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