An object weighing 2 kg was dropped from the ground at a height of 90 meters. What is the height of the object's kinetic energy twice the positional energy? (However, the resistance of air is ignored.)) 00 15m 2 2 30m 3 3 45m 4 4 60m 5 5 75m

An object weighing 2 kg was dropped from the ground at a height of 90 meters. What is the height of the object's kinetic energy twice the positional energy? (However, the resistance of air is ignored.)) 00 15m 2 2 30m 3 3 45m 4 4 60m 5 5 75m

Name: An object weighing 2 kg was dropped from the ground at a height of 90
Uploaded: 2024-03-20T06:57:25.000Z
Channel: Bartleby
Description: An object weighing 2 kg was dropped from the ground at a height of 90 meters. What is the height of the object'skinetic energy twice the positional energy? (However, the resistance of air is ignored.))00 15m2 2 30m3 3 45m4 4 60m5 5 75m

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

How much work (in J) is required to move a box that weighs 13 kg upward by 65 cm? Use the fact that acceleration due to gravity is 9.8m/s2.
A 2.00 kg object is dropped from a height of 20.0m and loses 25.0 J of energy due to air resistance as it falls. What is its speed just before it hits the ground?
What power is needed to lift a 49-kg person a vertical distance of 5.0 m in 20.0 s? 120 W 25 W 60 W 210 W 12.5 W
What is the kinetic energy of a 1400 kg car traveling at 5.3 s ? m 7.4 x 10° J 2.0 x 104 J 7.3 x 10 J 2.8 x 107 J
Suppose a car travels 108 km at a speed of 35.0 m/s, and uses 2.10 gallons of gasoline. Only 30% of the gasoline goes into useful work by the force that keeps the car moving at constant speed despite friction. (The energy content of gasoline is 1.3 ✕ 108 J per gallon.) (a) What is the force exerted to keep the car moving at constant speed? (b) If the required force is directly proportional to speed, how many gallons will be used to drive 108 km at a speed of 28.0 m/s?
A weight lifter raises a 80 kg barbell to a height of 2.4 m. what is the barbell's potential energy? Calculate answer to one decimal.
A car with a mass of 1.86 x 10^3 kg increases its speed from 63.0 km/h to 90.0 km/h. What is thechange in kinetic energy?
Alissa dropped a ball from a height of 2000 mm. Find out (a) how long it will take to hit the ground and (b) what would be its velocity when it hits the ground? (c) If mass of the ball is 500 g, what would be its kinetic energy when it hits the ground? (d) What would be its potential energy before its fall?
A stone of mass 1.0 kg is dropped from rest at the top of a 100.0 meter high building. Assume there is no air resistance. What is the kinetic energy of the stone just before it strikes the ground? The following numerical values may be helpful in this question. G = 6.67 ∙10-11 N∙m2/ kg2 Earth’s mass = 5.98 · 1024 kilograms g = 9.80 m/sec2 1 kilometer = 1000 meters
A ball of mass m = 6 kg is dropped from a height (hi = 10 m) above the ground. Find the speed of the ball when it is at a height (hf = 4 m) above the ground.