Physics
Grade-7
Easy

Question

Calculate the missing term. Take g as 10m/s2
m =?,  h = 10000cm,  GPE = 350 J (Take g = 10 m/s2)

  1. 35Kg
  2. 35g
  3. 3.5Kg
  4. 3.5g

hintHint:

If the body has 10000cm h and 350 GPE, the mass will be 3.5 Kg.

The correct answer is: 3.5Kg


    • The gravitational potential energy GPE= mgh.
    • The given h= 10000 cm = 100 m, GPE= 350 J.
    350 equals m cross times 100 cross times 10
350 equals space m cross times 1000
m equals space 1000 over 350 equals 3.5 space K g.

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