The weight of any person on the moon is about 1/6 times that on the earth. He can lift a mass of 15 kg on the earth. What will be the maximum mass, which can be lifted by the same force applied by the person on the moon?
Since the weight of any person on moon is about 1/6 times that on the earth, hence acceleration due to gravity at moon is 1/6 of that on earth. This means that by applying the same force a person can lift six times heavier object on the moon than what he could lift on the earth. So, the maximum mass which can be lifted by the same force applied by
the person on the moon is 6 × 15 kg = 90 kg.