Figure 7.3
-You are exercising with a 5 kg dumbbell, lifting it vertically up 40 cm and bringing it back to the same position (Fig. 3). How much work is done on the dumbbell by you, and how much by gravitational force?

Question

Figure 7.3 
-You are exercising with a 5 kg dumbbell, lifting it vertically up 40 cm and bringing it back to the same position (Fig. 3). How much work is done on the dumbbell by you, and how much by gravitational force?

Quizplus · Accepted Answer

The Answer of Figure 7.3 
-You are exercising with a 5 kg dumbbell, lifting it vertically up 40 cm and bringing it back to the same position (Fig. 3). How much work is done on the dumbbell by you, and how much by gravitational force?

Figure 7.3 -You Are Exercising with a 5 Kg Dumbbell, Lifting It