Question

In: Physics

A high-speed lifting mechanism supports a 710 kg object with a steel cable 20.0 m long...

A high-speed lifting mechanism supports a 710 kg object with a steel cable 20.0 m long and 4.00 cm2 in cross-sectional area.

(a) Determine the elongation of the cable.
_____ mm
(b) By what additional amount does the cable increase in length if the object is accelerated upward at a rate of 2.6 m/s2?
_____ mm
(c) What is the greatest mass that can be accelerated upward at 2.6 m/s2 if the stress in the cable is not to exceed the elastic limit of the cable, 2.2 ✕ 108 Pa?
______ kg

Solutions

Expert Solution


Related Solutions

A car with a mass of 1000 kg and a speed of v1 = 20.0 m/s...
A car with a mass of 1000 kg and a speed of v1 = 20.0 m/s approaches an intersection, as shown in the figure(Figure 1). A 1230 kg minivan traveling at v2 is heading for the same intersection. The car and minivan collide and stick together. The direction of the wreckage after the collision is θ = 44.0 ∘ above the x-axis. You may want to review(Pages 272 - 277). Part A: Find the initial speed of the minivan, assuming...
A 4.20 kg steel ball strikes a wall with a speed of 12.0 m/s at an...
A 4.20 kg steel ball strikes a wall with a speed of 12.0 m/s at an angle of 60.0° with the surface. It bounces off with the same speed and angle. If the ball is in contact with the wall for 0.200 s, what is the average force exerted by the wall on the ball? (Assume right is the positive direction.)
A 3-Kg toy car travelling initially with a speed of 20.0 m/s in the east direction...
A 3-Kg toy car travelling initially with a speed of 20.0 m/s in the east direction crashes into a 5.0 kg toy truck moving in the west direction 30.0m/s The velocity of the car right after the collision is 15.0m/s to the west. What is the velocity of the truck right after the collision.
The cable lifting an elevator is wrapped around a 1.2-m-diameter cylinder that is turned by the...
The cable lifting an elevator is wrapped around a 1.2-m-diameter cylinder that is turned by the elevator's motor. The elevator is moving upward at a speed of 1.3 m/s . It then slows to a stop, while the cylinder turns one complete revolution. How long does it take for the elevator to stop?
An 60 kg plank, 15 m long, has supports at locations X1=4 m and X2=12 m...
An 60 kg plank, 15 m long, has supports at locations X1=4 m and X2=12 m along the plank. Two additional forces F3=20 N and F4=25 N act at the points X3=2 m and X4=10 m along the plank, making angles of 30 degrees and 60 degrees with respect to the vertical. a) from x-equilibrium, determine the value of F4, b) from rotational equilibrium, determine the support forces N1 and N2 acting at the location of the two supports, taking...
object m1 = 1.50 kg starts at an initial height h1i = 0.290 m and speed...
object m1 = 1.50 kg starts at an initial height h1i = 0.290 m and speed v1i = 4.00 m/s, swings downward and strikes (in an elastic collision) object m2 = 4.40 kg which is initially at rest. Determine the height (in m) to which each ball swings after the collision (ignoring air resistance). m1= m m2= m
A 3 kg object is moving along the +y+y direction with a speed of 4 m/s...
A 3 kg object is moving along the +y+y direction with a speed of 4 m/s when it experiences an impulse of 5i^−8j^5i^−8j^ Ns. What is the object's speed after the impulse is applied?
A roofing shingle elevator is lifting a 25.0-kg package to the top of a building at constant speed.
A roofing shingle elevator is lifting a 25.0-kg package to the top of a building at constant speed. The angle between the elevator track and the horizontal is 75°. The power of the elevator is 900 W.Part A Determine the vertical component of the speed with which the package is moving up. Assume no friction is exerted by the incline surface on the package. 
1. Two forces P and Q act on an object of mass 20.0 kg with Q...
1. Two forces P and Q act on an object of mass 20.0 kg with Q being the larger of the two forces. When both forces are directed to the left, the magnitude of the acceleration of the object is 0.900 m/s2. However, when the force P is directed to the left and the force Q is directed to the right, the object has an acceleration of 0.400 m/s2 to the right. Find the magnitudes of the two forces P...
Calculate the final speed of an object if its initial speed is 10 m / s....
Calculate the final speed of an object if its initial speed is 10 m / s. The object has a mass of 5 kg. Initially it has a height of 20 meters, and it goes down to a height of 15 m. There are no dissipative forces on the object.
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT