nk39398 nk39398

03-03-2021
Physics

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An object is 10 m above Earth’s surface, and has a potential energy of 490 joules. What is the object’s mass?

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adedamolaogunlela adedamolaogunlela

03-03-2021

Explanation:

Taking g=10m/s²

P.E= mgh

490J= m×10×10.

490J=100m

m. = 490J/100

m. =4.9kg

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