Question

A person of mass 50kg climbs a tower of height 80m.Calculate the work done (g = 10m/s?).

Answer 1

Answer:

-40,000J

Explanation:

Work done = mgh Given m=50kg, h=80m, g=10m/s²

Work done = 50×80×10

Work done = 40,000J

Note- The work done will be negative (-40000J) because the work is done against gravity.

Answer 2

Answer:

Given :-

• A person of mass 50 kg climbs a tower of height 80 m.

To Find :-

• What is the work done.

Formula Used :-

$\bigstar$ Work Done Formula :

$\mapsto \sf\boxed{\bold{\pink{Work\: Done =\: mgh}}}$

where,

• m = Mass
• g = Acceleration due to gravity
• h = Height

Solution :-

Given :-

• Mass = 50 kg
• Acceleration due to gravity = 10 m/s²
• Height = 80 m

According to the question by using the formula we get,

$\implies \sf Work\: Done =\: 50 \times 10 \times 80$

$\implies \sf Work\: Done =\: 500 \times 80$

$\implies \sf\bold{\red{Work\: Done =\: 40000\: J}}$

$\therefore$ The work done by a person is 40000 J .