Final answer:
Using the kinetic energy formula KE = 1/2 mv^2 with a kinetic energy of 75 J and velocity of 50 m/s, the calculated mass of the tennis ball is 0.06 kg, which was not one of the provided options.
Step-by-step explanation:
To calculate the mass of the tennis ball, we can use the formula for kinetic energy (KE), which is KE = 1/2 mv2, where m is the mass of the object and v is its velocity. Given that the kinetic energy is 75 J and the velocity is 50 m/s, we can rearrange the formula to solve for m:
75 J = 1/2 m (50 m/s)2
m = (2 × 75 J) / (50 m/s)2
m = 150 / 2500
m = 0.06 kg
Therefore, none of the options A, B, C, or D are correct. The mass of the tennis ball is actually 0.06 kg.