Three different stones are lifted from the ground level to different heights on different planets as given below:
Case 1: A 250 g stone lifted to 10 m on earth.
Case 2: A 800 g stone lifted to 2 m on Saturn
Case 3: A 1 kg stone lifted to 1 m on Jupiter.
Which of the following statements is true? (Given that the acceleration due to gravity on the Earth, the saturn and the Jupiter are 10 m s-2, 15 m s-2 and 25 m s-2 respectively).
1
More energy is required in case 2 than case 1.
2
More energy is required for case 1 than case 3.
3
Case 1 and case 2 require the same amount of energy.
4
Case 1 and case 3 require the same amount of energy