When a technician touches a it is the most dangerous, and likely to cause serious injury. a. live conductor with his right hand and touches a ground with his left hand b. live wire with his hand but is standing on an insulated platform c. live wire with his right hand and accidentally touches his right elbow on the metal of the same unit d. ground with his thumb and a live wire with his index finger

live conductor with his right hand and touches a ground with his left hand

Explanation:

When a technician touches a live conductor with his right hand and touches a ground with his left hand, it is the most dangerous, and likely to cause serious injury.

This is because when the person touches the live conductor, there will be an electrical path which will allow current flow with the aid of the person's body. This is because the body of human being is a conductor. Therefore, when the technician touches the live conductor with his right hand and touches a ground with his left hand, an electrical path is created.

initial speed when it is dropped is 150 ft/s

now at the same moment the acceleration due to gravity is perpendicular to its velocity

so as we know that

now we have centripetal acceleration a = 32 ft/s^2 as its perpendicular to velocity

while tangential acceleration at the same moment will be zero

so

now radius of curvature is given as

so the radius of curvature just after it is dropped is 703.125 ft