Equal amounts of work

PHYSICS · Multi-part · CBSE · Physics · Work, Energy and Power · Work, Energy and Power

Problem

Equal amounts of work, 150 J150\,\text{J} each, are done on two carts that start from rest on a smooth track. Cart A has mass 5 kg5\,\text{kg} and Cart B has mass 15 kg15\,\text{kg}. (i) Calculate the speed acquired by Cart A. (ii) Calculate the speed acquired by Cart B. (iii) Which cart gains more kinetic energy per kilogram of its mass? Justify your answer with a calculation.

Related theory

Browse the problem library