pls help ill give brainliest!!!
The horsepower (hp) that a shaft can safely transmit varies jointly with its speed (in
revolutions per minute - rpm) and the cube of the diameter. If the shaft of a certain
material 3 inches in diameter can transmit 45hp at 100 rpm, what must the diameter
be in order to transmit 60hp at 150rpm?
*answer options in picture* (there can be multiple correct answers!!)
