Respuesta :

afzbyjus

Answer:

1.6 kg

Explanation:

Given:

PE = 40 J

h = 2.5 m

g = 10 m/s^2

To Find:

m = ?

Solution:

PE = mgh

40 = m(10)(2.5)

40 = 25m

m = 40 / 25

m = 8 / 5

Therefore, m = 1.6 kg

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