A helicopter is delivering food in an emergency situation, where it is difficult to land. The engineer is tasked with determining what heights the package could be dropped without breaking. She knows that if the package strikes the ground faster than the critical speed of 72.0mph, then the package will break. Neglect drag. At what height would the package hit the ground with the critical speed (in given units)? Could the package be safely dropped from a height of 60m?

A helicopter is delivering food in an emergency situation, where it is difficult to land. The engineer is tasked with determining what heights the package could be dropped without breaking. She knows that if the package strikes the ground faster than the critical speed of 72.0mph, then the package will break. Neglect drag. At what height would the package hit the ground with the critical speed (in given units)? Could the package be safely dropped from a height of 60m?

College Physics

11th Edition

ISBN:9781305952300

Author:Raymond A. Serway, Chris Vuille

Publisher:Raymond A. Serway, Chris Vuille

Chapter1: Units, Trigonometry. And Vectors

Section: Chapter Questions

Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...

See similar textbooks

Similar questions

A 5-kg block slides off the horizontal surface of a table with initial speed 1.45 m/s and hits the ground a horizontal distance 0.754 m from the table. How high is the table?
A baseball is thrown vertically upward with an initial velocity of 9 m/s. Neglecting air friction, at what height will the baseball be after 5 seconds?
Alice and Tom dive from an overhang into the lake below. Tom simply drops straight down from the edge, but Alice takes a running start and jumps with an initial horizontal velocity of 25 m/s. Neither person experiences any significant air resistance. Just as they reach the lake below (select all answers that are true) Group of answer choices: None of the above choices are correct. they will both have the same speed. the speed of Alice is larger than that of Tom. Alice reaches the surface of the lake first. They reach the surface of the lake at the same time. Tom reaches the surface of the lake first. the speed of Tom is larger than that of Alice.
A golfer hits a shot to a green that is elevated 2.60 m above the point where the ball is struck. The ball leaves the club at a speed of 19.2 m/s at an angle of 43.0˚ above the horizontal. It rises to its maximum height and then falls down to the green. Ignoring air resistance, find the speed of the ball just before it lands.
A rock is thrown straight downward near the Earth’s surface with initial velocity of 20m/s down. Assuming it doesn’t reach the ground, after 4 seconds its speed will be about
The known elevations of the ski jumping hill shown below are as follows: hB = 1.2 mhC = 6.4 m If a ski jumper starts from rest at position A, what elevation (in m) is required at position A to ensure that she reaches a minimum launch velocity of 27.1 m/s at position C ?
Cassy and friends dropped a bag from the roof of a school building. The bag strikes the ground in 5 seconds. The bag is in free fall (ignore air resistance). How high is the school building? 490 m В 122.5 m 49 m 4.9 m
A small block travels up a frictionless incline that is at an angle of 30.0° above the horizontal. The block has speed 5.10 m/s at the bottom of the incline. Assume g = 9.80 m/s2. How far up the incline (measured parallel to the surface of the incline) does the block travel before it starts to slide back down?
A small block slides down a frictionless track whose shape is described by y = (x^2) /d for x<0 and by y = -(x^2)/d for x>0. The value of d = 2.67m, and x and y are measured in meters as usual. Suppose the block starts on the track at x = 0. What minimum initial velocity (moving to the right) must the block have such that it will leave the track at x = 0 and go into freefall? 7.24 m/s 5.12 m/s 9.89 m/s 9.01 m/s
A physics book slides off a horizontal table top with a speed of 1.10 m/s. It strikes the floor after a time of 0.480 s. Ignore air resistance. Find the horizontal distance from the edge of the table to the point where the book strikes the floor.
A skier leaves a ski jump at 14.4 m/s at some angle . At what speed is he travelling at his maximum height of 4.40 m above the level of the end of the ski jump? neglect air friction I need to find speed m/s?