You would want it to be greater than D. friction force
It needs be greater than the friction applied to it.
The upper back muscles being worked while using a rowing machine .your upper trapezius and rhomboids located between your shoulder blades, and latissimus dorsi located beneath the armpits
The speed is 0.2 meter per minute.
There is not enough information given in the question to determine the velocity.
Possibilities . . .
-- nuclear reaction
-- nuclear fission
-- nuclear fusion
-- radioactive decay.
Any of these makes it a true statement.
