Jawapan Buku Teks Fizik Tingkatan 4 Kssm Aktiviti 13 Work Work File

where m is the mass of the object, g is the acceleration due to gravity (approximately 9.8 m/s^2), and h is the height of the object above the ground.

KE = ВЅ Г— m Г— v^2 = ВЅ Г— 2 kg Г— (4 m/s)^2 = 16 J

First, calculate the work done:

A 10 kg object is lifted to a height of 4 m above the ground. Calculate its gravitational potential energy.

GPE = m Г— g Г— h

A 5 kg object is lifted to a height of 2 m above the ground. Calculate its gravitational potential energy.

Solution:

W = F Г— s