Jawapan Buku Teks Fizik Tingkatan 4 Kssm Aktiviti 13 Work Work Extra Quality [Premium ✯]

First, calculate the work done:

Solution:

A 2 kg car is moving at a velocity of 4 m/s. Calculate its kinetic energy. First, calculate the work done: Solution: A 2

GPE = m × g × h = 10 kg × 9.8 m/s^2 × 4 m = 392 J calculate its efficiency.

A machine lifts a 100 kg load to a height of 5 m in 10 seconds. If the machine requires an input energy of 5000 J, calculate its efficiency. First, calculate the work done: Solution: A 2