Physics, asked by santoshkumar05261, 1 month ago

A boy climbs on a pole of height 5 m. In doing so, he does 5000 J of work. Find his mass. ​

Answers

Answered by MystícPhoeníx
36

Answer:

100kg is the required answer.

Explanation:

According to the Question

It is given that ,

  • Height ,h = 5m
  • Work Done ,W = 5000J

We need to calculate the mass of the body.

As we know that , the acceleration due to gravity is 10m/.

Here, the boy climb on a pole so, we calculate the work done against gravity.

  • W = mgh

where,

W denote Work done

m denote mass

g denote acceleration due to gravity

h denote height

substitute the value we get

➻ 5000 = m × 5×10

➻ 5000 = m × 50

➻ 5000/50 = m

➻ 100 = m

➻ m = 100kg

  • Hence, the weight of the boy is 100kg.
Answered by devanshu1234321
7

EXPLANATION:-

Given:-

Height= 5 m

Work done=5000 j

To be calculated=Mass of the boy

EXPLANATION:-

Using the formula of work done:-

w=mgh

w=Work done=5000 j

m=mass of the body=To be calculated

g=acceleration due to gravity =10 m/s²

h=height = 5 m

Let's put the given data in the formula we get :-

w=mgh

5000=m×10×5

5000=m×50

m=5000/50

m=100 kg

Hence the weight of the boy is 100 kg

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