Pam has a mass of 49.2 kg and she is at rest on smooth, level, frictionless ice. Pam straps on
a rocket pack. The rocket supplies a constant
force for 24.4 m and Pam acquires a speed of
59 m/s.
What is the magnitude of the force?
Answer in units of N.
What is Pam’s final kinetic energy?
Answer in units of J.

Electric field of the earth. the earth has a net electric charge that causes a field at points near its surface equal to 150 n> c and directed in toward the center of the earth. (a) what magnitude and sign of charge would a 60-kg human have to acquire to overcome his or her weight by the force exerted by the earth’s electric field? (b) what would be the force of repulsion between two people each with the charge calculated in part (a) and separated by a distance of 100 m? is use of the earth’s electric field a feasible means of flight? why or why not?