Compared with the force her neck exerts on her head during the landing, is the force her head exerts on her neck the same, greater, smaller, or greater during the first half of the landing and smaller during the second half of the landing?

Answer: it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.explanation:   we have equation of motion ,where s is the displacement, a is the acceleration, u is the initial velocity and t is the time taken.average velocity = displacement/ time taken.average velocity = 10.69 miles/hr = 10.69*1.6*1000/(60*60) = 4.75 m/s4.75 = s/ts = 4. 1we also have acceleration = 2.18 m/s², initial velocity = 0 m/sso it will take   4.36 seconds to reach her average velocity 10.69 miles/hour.

Electoral current force mechanical advantage if the wheel and axle is 2 n and the output force is 20 n