d and (b) the loss of energy |AE| due to the impact.
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- Freight car A with a gross weight of 154000 Ib is moving along the horizontal track in a switching yard at 2.3 mi/hr. Freight car B with a gross weight of 159000 Ib and moving at 3.3 mi/hr overtakes car A and is coupled to it. Determine (a) the common velocity V of the two cars as they move together after being coupled and (b) the loss of energy |AE| due to the impact. 3.3 mi/hr 2.3 mi/hr Answers: (a) V = i mi/hr ( b) ΙΔΕΙ - ft-lb =Freight car A with a gross weight of 194000 Ib is moving along the horizontal track in a switching yard at 1.9 mi/hr. Freight car B with a gross weight of 107000 Ib and moving at 2.6 mi/hr overtakes car A and is coupled to it. Determine (a) the common velocity V of the two cars as they move together after being coupled and (b) the loss of energy |AE| due to the impact. 2.6 mi/hr 1.9 mi/hr B A Answers: (a) V = i mi/hr ( b) |ΔΕΙ- i ft-lbFreight car A with a gross weight of 155000 lb is moving along the horizontal track in a switching yard at 2.3 mi/hr. Freight car B with a gross weight of 129000 lb and moving at 2.8 mi/hr overtakes car A and is coupled to it. Determine (a) the common velocity V of the two cars as they move together after being coupled and (b) the loss of energy |AE| due to the impact. 2.8 mi/hr 2.3 mi/hr B A Answers: (a) V = i mi/hr (b) ΙΔΕΙ- i ft-lb
- Freight car A with a gross weight of 180000 Ib is moving along the horizontal track in a switching yard at 2.6 mi/hr. Freight car B with a gross weight of 147000 lb and moving at 3.0 mi/hr overtakes car A and is coupled to it. Determine (a) the common velocity V of the two cars as they move together after being coupled and (b) the loss of energy |AE| due to the impact. 3.0 mi/hr 2.6 mi/hr В Answers: (a) V = i mi/hr (b) ΔΕΙ- i ft-lbFreight car A with a gross weight of 182000 lb is moving along the horizontal track in a switching yard at 2.1 mi/hr. Freight car B with a gross weight of 179000 lb and moving at 3.1 mi/hr overtakes car A and is coupled to it. Determine (a) the common velocity V of the two cars as they move together after being coupled and (b) the loss of energy |AE| due to the impact. 3.1 mi/hr 2.1 mi/hr B A Answers: (a) V = i 2.595 mi/hr ( b) | ΔΕ- ft-lbFreight car A with a gross weight of 138000 lb is moving along the horizontal track in a switching yard at 3.0 mi/hr. Freight car B with a gross weight of 166000 lb and moving at 3.9 mi/hr overtakes car A and is coupled to it. Determine (a) the common velocity V of the two cars as they move together after being coupled and (b) the loss of energy |AE| due to the impact. 3.9 mi/hr Answers: (a) V = B i (b) |AE| = i 3.0 mi/hr mi/hr ft-lb
- A truck with mass of M is going to tow the car with mass m. For values of M and m please follow the Table 1. If the car is initially at rest and the truck is moving with a velocity of 30 km/h when the cable is still slack, (i) Draw the free-body diagram of the truck and car system. (ii) (iii) determine the common velocity of the truck and the car just after the cable becomes taut. (note: the velocity of truck and car would be the same). find the loss of energy during this process. km h 30- First name starting (A-M) First name starting (N-Z) Surname starting (A-M) Surname starting (N-Z) Figure 1 Table 1 * M = 1,500 kg M = 2,500 kg m = 1,000 kg m = 800 kgThe subway train shown is traveling at a speed of 25 mi/h when the brakes are fully applied on the wheels of cars B and C, causing them to slide on the track, but are not applied on the wheels of car A. The coefficient of kinetic friction is 0.35 between the wheels and the track. v/mi/h 40 tons 50 tons 40 tons Determine the distance required to bring the train to a stop. (You must provide an answer before moving to the next part.) The distance required to bring the train to a stop is ft.Crate A is gently placed with zero initial velocity onto a moving conveyor belt. The coefficient of kinetic friction between the crate and the belt is μk . Draw the FBD and KD for A immediately after it contacts the belt.
- In the position shown, block A is moving to the left at a speed of 6 m/s, and the spring is not deformed. Determinate the stiffness of the k-spring, in N/m, which would cause the system to stop after A has shifted 0.8 m. The kinetic friction coefficient between block A and the horizontal surface is 0.25, and the weights of the pulleys are negligible. The mass of block A is 2.6 kg, and the mass of block B is 6.0 kg. VA k 0000000000 A fk BA motorcycle and rider have a combined mass of 350kg. The vehicle's velocity is 100 km/hr. The rider is to go up a hill incline of 10 meters. The wheels each have a mass of 20 kg and a diameter of 500mm. The wheel design consists of 6 spokes with a mass of 0.5 kg for each spoke. a. Determine the vehicle's velocity at the top of the hill, assuming it was a rolling vehicle with engine being turned off. a. Indicate the vehicle's velocity at each meter through the climb. b. Explain the transfer energy and how this affects the behaviour of the system. At another point in its journey, the motorcycle and rider travel at 80 km/h around a left-hand bend of radius 30m. Calculate: a) The angular velocity of each wheel. b) The moment of inertia of each wheel. c) The angular momentum of the wheel prior to entering the bend. d) The magnitude of the gyroscopic torque produced on the bike as the rider is driving around the bend. What is the effect and why is it important to calculate the gyroscopic…Slider C has a mass of 0.5 kg and may move in a slot cut in arm AB, which rotates at constant speed in a horizontal plane. The slider is attached to a spring of constant k = 150 N/m, which is unstretched when r = 0. When arm AB rotates about the vertical axis, the slider moves without friction outward along the smooth slot cut. Determine for the position r = 80 mm: a) The constant speed (V) of the slider. b) The normal force (N) exerted on the slider by arm AB. A r=80mm B