299,796 views
32 votes
32 votes
The footballer kicked the ball and it was caught by the opposing goalkeeper, 4 metres above the ground. The ball was travelling at 10 m s¹. (1) Calculate the potential energy of the ball just before it was caught.

The footballer kicked the ball and it was caught by the opposing goalkeeper, 4 metres-example-1
User ShahidAzim
by
2.8k points

1 Answer

7 votes
7 votes
Answer:

1) Potential energy of the ball just before the kick was taken = 0J

2) The potential energy of the ball just before it was caught = 58.8 J

Step-by-step explanation:

1)Since the height of the ball is 0m on the ground, the potential energy of the ball just before the kick was taken is 0 J

2) The mass of the ball, m = 1.5 kg

Acceleration due to gravity, g = 9.8 m/s^2

the height of the ball, h = 4 m

The Potential Energy = mgh

The potential energy of the ball just before it was caught = 1.5 x 9.8 x 4

The potential energy of the ball just before it was caught = 58.8 J

User Prachi
by
2.7k points