Question

Calculate the mass of the body whose weight is 20N​

Answer 1

Ａｎｓｗｅｒ:

• F = -20N

• W = 9.8N

• We knot that

• W = mg

• 9.8 = m×9.8

• 9.8÷9.8 = m

• 1kg = mass

• We also know

• F = ma

• 20 = 1×a

• 20 = acceleration

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Answer 2

Answer:

Weight = 9.8 N

W=m×g

9.8=m×9.8

m = 1 kg

Force, F=mass×acceleration

20N=1Kg×a

Acceleration,

a=20m/s²