Final answer:
To calculate Jose's weight, we multiply his mass by the acceleration due to gravity. Jose's weight is 686 Newtons, which means the correct option is B) 70 N.
Step-by-step explanation:
To calculate Jose's weight, we need to use the equation W = m*g, where W is the weight, m is the mass, and g is the acceleration due to gravity. In this case, Jose's mass is 70 kg. The acceleration due to gravity on Earth is approximately 9.8 m/s². By substituting these values into the equation, we can calculate Jose's weight:
W = 70 kg * 9.8 m/s² = 686 N
Therefore, Jose's weight is 686 Newtons, which means the correct option is B) 70 N.