Escaping from a tomb raid gone wrong, Lara Croft (m= 61.0 kg) swings across an alligator-infested river from a 9.25-m-long vine. If her speed at the bottom of the swing is 5.90 m/s and she makes it safely across the river, what is the minimum breaking strength of the vine? N
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- N 8. You are riding a roller-coaster going around a vertical loop, on the inside of the loop. If the loop has a radius of 55.0 m, how fast must the cart be moving in order for you to feel 2.75 times as heavy at the bottom of the loop? m/s R 20 MacBook Air N J M K 17 1Energy conservation with conservative forces: A very small 100-g object is attached to one end of a massless 10-cm rod that is pivoted without friction about the opposite end. The rod is held vertical, with the object at the top, and released, allowing the rod to swing. What is the speed of the object at the instant that the rod is horizontal? 1.8 m/s 1.4 m/s 0.71 m/s 2.8 m/s 4.0 m/s fbbI am unsure where to start on this problem how do I do it?
- m = 325 kg h1 = 19.5 m h2 = 4.7 m A roller coaster car of mass m is rolling down the track, starting from rest, as shown in the figure. The initial height from the ground is h1 (Position-1), while the final height is h2 (Position-3). The system has no friction. What is the speed of the car when it reaches its final height (Position-3).Snotizoq Isnigho ai mont Practice: 1. A force F with arrow = 81-3ĵ N acts on a particle that undergoes a displacement from point A with x, y coordinates (1 m, 0m) to point B with coordinates (2m, -2m). a) What is the work done by the force?Please provide the correct answer
- A car's bumper is designed to withstand a 4.32 km/h (1.2-m/s) collision with an immovable object without damage to the body of the car. The bumper cushions the shock by absorbing the force over a distance. Calculate the magnitude of the average force on a bumper that collapses 0.270 m while bringing a 820 kg car to rest from an initial speed of 1.2 m/s. NPRINTER VERSION 4 ВАСК NEXT Chapter 08, Problem 069 Z Your answer is partially correct. Try again. In the figure the pulley has negligible mass, and both it and the inclined plane are frictionless. Block A has a mass of 1.0 kg, block B has a mass of 2.2 kg, and angle 0 is 27 °. If the blocks are released from rest with the connecting cord taut, what is their total kinetic energy when block B has fallen 21 cm? Number T2.47 UnitsT the tolerance is +/-2% Click if you would like to Show Work for this question: Open Show Work SHOW HINT LINK TO TEXT LINK TO SAMPLE PROBLEM LINK TO SAMPLE PROBLEM LINK TO SAMPLE PROBLEM VIDEO MINI-LECTURE search 6:49 PM ENG 3/30/2021 pause ohome Pgup prt sc insert 10 end 112Pgdn break 3. 7. 8. 6.