This doesn’t makes sense at all yes the sheer is ,383
Examples of devices that convert electrical energy into mechanical energy — in other words, devices that use electrical energy to move something — include:
the motor in today’s standard power drills
the motor in today’s standard power saws
the motor in an electric tooth brushes
the engine of an electric car
the motor in a fan
the motor in a remote control cars that runs on batteries. So your answer would be B. Motorsport
I believe it is d because without our ankle our foot wouldn't move correctly
The force exerted by each team is 30 N. The forces are in the direction opposite to each other.
Force exerted by team 1, 
Force exerted by team 2,
Net force, 

Therefore, net force on the rope is 0 N.