A. The potential energy of ball is 61.74 J
B. The kinetic energy of the ball is 708.75 J
A. Determination of the potential energy of the ball.
We'll begin by converting the mass of the ball (i.e 6300 g) to kilograms (kg). This can be obtained as follow:
1000 g = 1 Kg
Therefore,
6300 g = 6300 / 1000
6300 g = 6.3 Kg
Thus, 6300 g is equivalent to 6.3 Kg.
Finally, we shall determine the potential energy of the ball.
Mass (m) = 6.3 Kg
Height (h) = 0.98 m
Acceleration due to gravity (g) = 10 m/s²
Potential energy (PE) =?
PE = mgh
PE = 6.3 × 10 × 0.98
PE = 61.74 J
Therefore the potential energy of the ball is 61.74 J
B. Determination of the kinetic energy of the ball.
Mass (m) = 6.3 Kg
Velocity (v) = 15 m/s
Kinetic energy (KE) =?
KE = ½mv²
KE = ½ × 6.3 × 15²
KE = 3.15 × 225
KE = 708.75 J
Therefore, the kinetic energy of the ball is 708.75 J
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