What power is needed to lift a 49 kg person

Asked by admin @ 04/08/2021 in English viewed by 367 People

What power is needed to lift a 49kg person a vertical distance of 5.0m in 20.0s?

(125W (B) 210 W (C) 120 W(D) 25 W

Answered by admin @ 04/08/2021

$\huge\mathcal\pink{\boxed{\boxed{\boxed{Hola\:mate}}}}$

$\huge\sf\purple{Good \: evening }$

$\huge\mathcal\green{\boxed{Answer\:---}}$

Power=Work/time

Work=Force*Distance (in our case)

Force=m*g (lifting force is equal to weight of the body)

Given,

m = 49kg

Distance = 5m

time = 20s

g = 9.8 m/ sec²

Force=m*g

= 49 * 9.8

= 480.2 N

Work = Force * distance

= 480.2 * 5

= 2401 J

Power = Work / time

= 2401 / 20

=120.05 Watt

Power=120 Watt ( approx.)

$\huge\mathcal\purple{Hope\: it \:helps\:....}$

$\huge\mathcal\purple{Please\:mark\:as\:the}$

$\huge\mathcal\green{\boxed{\boxed{brainliest\: (rate)}}}$

$\huge\mathcal\purple{and\:follow}$

How many balloons do you need to lift a person

Asked by admin @ 16/11/2021 in Physics viewed by 345 persons

how many helium-filled balloons would it take to lift a person? assume the person has a mass of 73 kgkg and that each helium-filled balloon is spherical with a diameter …

According to the elements of style, which sentence is written in active voice? the acceptance speech was given by the award winners. the pennants were won by the championship team. a memorable evening was had by all who attended the event. the workers took precautions while digging along power lines.

Asked by elijah67 @ 28/09/2022 in World Languages viewed by 1538 persons

The mass of a lift is 2000 kg

Asked by admin @ 29/08/2021 in Physics viewed by 258 persons

A mass of a lift is 2000kg. When the tension in the supporting cable is 28000N, then its acceleration is-

A person with good understanding knowledge and reasoning power

Asked by admin @ 23/08/2021 in Math viewed by 315 persons

A person of good understanding knowledge and Reasoning power A) Snob B) Expert C) Literate D) Intellectual

An elevator weighing 1000 kg is to be lifted

Asked by admin @ 23/08/2021 in Science viewed by 298 persons

an elevator weighing 500 kg is to be lifted up at a constant velocity of 0.4m/s . what should be the minimum horse power of the motor to be used?

A person in lift which ascents up with acceleration

Asked by admin @ 23/08/2021 in Physics viewed by 299 persons

a person in lift which ascents up with acceleration 10 m/s2 drops a stone from a height 10 m.the time of descent is_________ [ g= 10m/s2] A. 1s B. 2s …

An elevator weighing 500 kg is to be lifted

Asked by admin @ 20/08/2021 in Science viewed by 304 persons

an elevator weighing 500 kg is to be lifted up at a constant velocity of 0.4m/s . what should be the minimum horse power of the motor to be used?

Government by a small group of all powerful persons

Asked by admin @ 20/08/2021 in Political Science viewed by 281 persons

________is the Government by a small group of powerful people .

A rocket with a lift off mass 20000 kg

Asked by admin @ 20/08/2021 in Science viewed by 297 persons

A rocket with a lift off mass 20000 kg is blasted upwards with a net acceleration of 5m/s sq. calculate the initial thrust of the blast. ans 2.96 * 10 …

Giving money to a person who is in need

Asked by admin @ 16/08/2021 in English viewed by 318 persons

Which word in the poem means giving money to a person who is in need? 5. which word in the poem means ""giving money to a person who is in …

What qualities does a trustworthy person need to have

Asked by admin @ 13/08/2021 in English viewed by 280 persons

What qualities does a trustworthy person need to have?What

A person who rebels against any authority ruling power

Asked by admin @ 12/08/2021 in English viewed by 413 persons

A person who rebels against any authority ruling power

A person of good understanding knowledge and reasoning power

Asked by admin @ 10/08/2021 in Math viewed by 362 persons

A person of good understanding knowledge and Reasoning power A) Snob B) Expert C) Literate D) Intellectual

A force of 1000n is needed to lift the hook

Asked by admin @ 02/08/2021 in Physics viewed by 240 persons

A force of 1000N is needed to lift the hook of a crane at a steady velocity. The crane is than used to lift a load of mass 1000kg at …

In personal finance, what is considered a need?

Asked by maham237 @ 24/12/2020 in Social Studies viewed by 329 persons

In personal finance, what is considered a need? something one would like to have something for which one budgets something one can afford something one cannot live without