Question

please answer.................................​

Answer 1

Answer:

Using Law of Conservation of energy,

Potential energy = Kinetic energy

Potential energy( mgh ) = 10J

m ×10 × 5 = 10

m = 1/5 kg

m = 0.2 kg

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Answer 2

hlo pinxiliu

Energy=mass×acceleration de to gravity×Height

thus

according to question

kinetic energy=M×g×h

10=m×9.8×5

10=M×49

M=49/10

M=0.25kg

so,the mass of the body is 0.25kg

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