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

Efficiency = (Work done / Energy input) × 100% = (980 J / 2000 J) × 100% = 49%

A 20 N force is applied to a block, causing it to move 3 m to the right. Calculate the work done on the block. Efficiency = (Work done / Energy input) ×

where F is the force applied and s is the displacement of the object. Efficiency = (Work done / Energy input) ×

KE = ½ × m × v^2 = ½ × 5 kg × (2 m/s)^2 = 10 J Efficiency = (Work done / Energy input) ×

Solution:

Energy is the ability to do work. There are two main types of energy: kinetic energy and potential energy.