RoboticNaruto4693 RoboticNaruto4693

03-01-2018
Physics

contestada

How much work is done when a hoist lifts a 290-kg rock to a height of 7 m?

Respuesta :

samuraijack samuraijack

03-01-2018

Given: Mass m = 290 Kg; Height h = 7 m

Required: Work = ?

Formula: Work = Force x distance but, Force F = mg

W= fd

W = mgh

W= (290 Kg)(9.8 m/s²)(7 m)

W = 19,894 Kg.m²/s²

W = 19,894 J

Answer Link

Otras preguntas

Find the difference: square root20 - square root80

A force F S applied to an object of mass m1 produces an acceleration of 3.00 m/s2. The same force applied to a second object of mass m2 produces an acceleration

Which preposition best completes this sentence? J'ai cherché du travail deux semaines

What is a mixed economy? exactly the same as a centrally planned economy the exact opposite of a free enterprise system a market-based economic system based on

Select the best answer for the question.3. PRT Company produces the best computer printers in the industry. The printers are long-lasting and price-friendly, an

Read the passage. Then answer the question that follows. ANTONY. Friends, Romans, countrymen, lend me your ears. I come to bury Caesar, not to praise him. The e

Compare and contrast epidural and subdural hemorrhages.

Explain how myelination of a nerve fiber occurs? What cells do it?

In the diagram below AQRS is an equilateral triangle and RT OS Which statement must be true? A. RT2.07 B. QR RT C. AQRT is a 45-45-90 triangle D. AQRT is a 30-6

What is the discriminant of the polynomial below? 2х2 + 4x - 9 А. 88 в. 22 с. -56 D. -2