
A chain consisting of five links, each of mass 0.160 kg, is lifted vertically with a constant acceleration of a = 3.3 m/s2. Find the magnitude of the force that link 3 exerts on link 2.What is the magnitude of the force F that must be exerted on the top link to achieve this acceleration?
A chain consisting of five links, each of mass 0.160 kg, is lifted vertically with a...
An object of mass -20 kg is lifted by a standard man with the aid of a pulley, as shown in the figure below. The upper arm is held vertical and the lower arm has an angle of θ·33° with the horizontal. The label c.m. marks the centre of mass of the lower arm. Consider the force due to the weight of the object M, the weight of the lower arm and hand, the tension due to the triceps muscle,...
In the figure below, a block of mass m=5 kg is pulled along a horizontal frictionless floor by a cord that exerts a force of magnitude F=12 N at an angle q=250. (a) What is the magnitude of the blocks acceleration? (b) The force magnitude F is slowly increased. What is its value just before the block is lifted (completely) off the floor? (c) What is the magnitude of the blocks acceleration just before it is lifted (completely) off the...
Two crates, of mass m1= 50 kg and m2= 100 kg, are in contact and at rest on a horizontal surface. Force F= 600 N is exerted on the 50-kg crate. The coefficient of kinetic friction is 0.20. A) determine the acceleration of the system. B) determine the magnitude of the force that each crate exerts on the other.
A chain of metal links with total mass M = 5 kg is coiled up in a tight ball on a low-friction table. You pull on a link at one end of the chain with a constant forceF = 62 N. Eventually the chain straightens out to its full length L = 1 m, and you keep pulling until you have pulled your end of the chain a total distance d = 3.6 m.What is the increase in internal energy...
A smooth can C, having a mass of 8 kg, is lifted from a feed at A to a ramp at B by a rotating rod. The rod maintains a constant angular velocity of 0.5 rad/s. Neglect the effects of friction in the calculation and the size of the can so that r (1.2 cos θ) m. The ramp from A to B is circular, having a radius of 600 mm. (Figure 1) ▼ Part A Determine the magnitude of...
A single mass (m1 = 4.4 kg) hangs from a spring in a motionless elevator. The spring constant is k = 270 N/m. 1) What is the distance the spring is stretched from its unstretched length? 2) Now, three masses (m1 = 4.4 kg, m2 = 13.2 kg and m3 = 8.8) hang from three identical springs in a motionless elevator. The springs all have the same spring constant given above. What is the magnitude of the force the bottom spring exerts on the...
co200.000 10.5 A block of mass 0.5 kg on a horizontal surface is attached to a horizontal spring of negligible mass and spring constant 50 N/m. The other end of the spring is attached to a wall, and there is negligible friction between the block and the horizontal surface. When the spring is unstretched, the block is located at x = Om. The block is then pulled to x = 0.3m and released from rest so that the block-spring system...
In tests on earth a lunar surface exploration vehicle (mass = 5.83 × 103 kg) achieves a forward acceleration of 0.219 m/s2. To achieve this same acceleration on the moon, the vehicle's engines must produce a drive force of 1.43 × 103 N. What is the magnitude of the frictional force that acts on the vehicle on the moon?
help with part 5
1. A 125-kg load is lifted 12.0 m vertically with an acceleration a -0.32g by a single cable. Determine: (a) the tension in the cable, (b) the net work done on the load, (c) the work done by the cable on the load, (d) the work done by gravity on the load, and (e) the final speed of the load assuming it started from rest. 2. A 1.60-m tall person lifts a 2.10-kg book from the...
A single mass (m1 = 4.3 kg) hangs from a spring in a motionless elevator. The spring constant is k = 266 N/m. 1) What is the distance the spring is stretched from its unstretched length? 2) Now, three masses (m1 = 4.3 kg, m2 = 12.9 kg and m3 = 8.6) hang from three identical springs in a motionless elevator. The springs all have the same spring constant given above. What is the magnitude of the force the bottom...