Final answer:
The force exerted by Timmy on his opponent is calculated using Newton's second law (F = ma), and it is 1360.5 N, which is answer choice (b).
Step-by-step explanation:
The force Timmy exerts on his opponent can be calculated using Newton's second law, which states that force equals mass times acceleration (F = ma). Given that the opponent has a mass of 90.7 kg and is accelerated at 15 m/s2, the force exerted by Timmy can be calculated as follows:
F = ma = 90.7 kg × 15 m/s2 = 1360.5 N.
Therefore, the force Timmy exerts on his opponent is 1360.5 N, which corresponds to answer choice (b).