The answer is 1. 4 is incorrect because you can't really decrease the mass of the driver. 3 is incorrect because accelerating the driver would cause more damage than not. 2 is incorrect because decreasing the distance would only cause more damage. 1 is correct because by increasing the length of time the force acts on the driver helps reduce the speed of the driver and cause the drive to sustain less injuries. Hope that helps.
Answer:
Induced emf is 0.324 V
Explanation:
We have,
Number of turns, n = 61.6
Radius of circular coil, r = 4.44 cm
Resistance of coil, R = 2.34 Ω
The magnitude of the magnetic field varies in time according to the expression :


The magnitude of the induced emf in the coil is given by :


At t = 9.21 s,



So, the magnitude of the induced emf in the coil is 0.324 V
It is Tension as the other 3 answer choices would not make sense. Compression would mean you are pressing the rock on both sides or in this case, pushing it into the dirt. It can't be nuclear force as you are pulling out a rock. Air resistance would not make sense either as there is no air involved in the scenario at all.
I believe it is kinetic energy
The initial speed doesn’t matter. To reach the maximum height, you need to launch straight up ... 90 degrees above horizontal.