Physics, asked by aditiraje06, 10 months ago

How much is the weight of a man if he has to do 2500 joules of work in climbing a tree 5 centimetre tall g = 10m / s2
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Answers

Answered by Anonymous
46

Answer :-

Mass of man = 50 kg

_________________________

Explanation :-

Given:-

  • Potential energy (P) = 2500 J
  • Height of tree (h) = 5 m
  • According due to gravity (g) = 10 m/s²

Find:-

  • Weight of the man.

Solution:-

Energy possesed by an object due to change in it's shape or position is known as Potential energy.

  • It is denoted by U.
  • It's S.I. unit is joule (J).

And in above question, the man change his position to do the work. The energy possesed by him is knwon as Potential energy.

\sf{Potential \:energy \:=\:mass\:\times\:acceleration \:due} \sf{to\:gravity \:\times\:height}

OR

\sf{U\:=\:mgh}

Substitute the known values in above formula

\implies \:2500\:=\:m\:\times\:10\:\times \:5

\implies \:2500\:=\:m\:\times\:50

\implies \:\frac{2500}{50}\:=\:m

\implies \:50\:=\:m

\implies \:m\:=\:50

•°• Mass of the man is 50 kg

Answered by Anonymous
40

\huge\sf{Answer:-}

Given:-

How much is the weight of a man if he has to do 2500 joules of work in climbing a tree 5 centimetre tall g = 10m / s2

Find:-

The weight of the man.

Hence:-

Note That :-

• Let U be the Denoted and Joule be the SI unit.

• Let (J) be the joule.

[Formula]

Potential energy = mass × acceleration of gravity × height.

Adding values

  \sf = 2500 = m \times 10 \times 5 \\  = 2500 = m \times 50 \\ \sf = \frac{2500}{50}  = m \\ \sf = 50 = m \\ \sf m = 50

Therefore, 50kg is the weight of the man.

\bf\black{S.}\bf\red{Nayan}\bf\blue{Shreyas...}

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