10. Adi throw a rock of mass 2.3 kg as high as he could. The potential energy if the rock at the highest point (potential energy maximum) is 279.5 J
a. How high did a rock reach before it started falling towards the ground?
jawab Pake cara yang bener
a. How high did a rock reach before it started falling towards the ground?
jawab Pake cara yang bener
Jawaban:
12,1 meters
Penjelasan:
Assumption that the acceleration of the gravitation is 10 m/s².
Potential energy at the highest point is 279,5 J, so :
Ep = m . g . h
279,5 = 2,3 . 10 . h
279,5 = 23 . h
h ≈ 12,1 meters