Answer to Question #255920 in Physics for Lisa

Question

Calculate the force of gravitational attraction between the earth (m = 5.98 x 1024 kg) and a 75-kg 

physics student if the student is standing at sea level, a distance of 6.38 x 106 m from earth's center.

Answer 1

Apply law of universal gravitation:

$$F=\frac{GMm}{R^2}=735\text{ N}.$$