Find the time period of oscillations of liquid in a U-tube when disturbed from equilibrium position.​

A20 m long rope is attached to the top of a 10 m high pole fixed on the ground. the rope is pulled with a force of 100 n and its end just touches the ground. with what force will the pole be pressed downwards? 25 50 100 200

Define absolute error, mean absolute error, relative error and mean percentage error​

Define --three dimensional motion with example