A 20 kg sphere suspended using a cable is pulled towards the right by a force F. The cable can withstand a maximum tension of 300 N. If the force F is increased gradually. What is the magnitude of F' when the cable breaks.
Answers
Answer:( a ) The net force acting on the hover craft is zero.
As the hovercraft is moving at a constant velocity its acceleration is zero. Thus, according to Newton’s second of motion the net force acting on it is zero.
( b ) The net force acting on the floating bottle cap is zero.
The weight of the cork acting downwards is balanced by the buoyant forces of the wine pushing it upwards.
( c ) The net force acting on the electron is zero.
The electron moving in the remote space has no external forces working on it thus the net force acting on it is zero.
( d ) The net force working on the rain drop is zero.
As the rain drop is falling at a constant velocity its acceleration is zero. Thus, according to Newton’s second law of motion the net force acting on it is zero.
( e ) The net force working on the kite is zero.
The kite is stationary so according to Newton’s first law of motion no net force is acting on the kite.