Physics

1. Initial Kinetic Energy:

The initial velocity of the ball is given as 10 m/s, and the mass is 1 kg. The initial kinetic energy (at the moment of launch) can be calculated using the formula:

where:

(mass of the ball),

(initial velocity).

 

Substituting the values:

 

2. Potential Energy at 3 m:

At a height of 3 m, the ball has gained gravitational potential energy, which can be calculated using the formula:

where:

,

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