Question

A body makes a displacement of 4 m due east from a point O and then makes displacement of 3 m due north.its resultant displacement from O​

Answer 1

Answer:

5 m

Explanation:

when u draw this on paper u will find that it is forming a right angle triangle .

therefore, using Pythagoras theorem

displacement is a straight line so, displacement will.be the length of hypotenuse

I.e. sqrt( (3)²+(4)²)= | displacement |

sqrt(9+16) = | displacement |

sqrt(25) = | displacement |

5 = | displacement |

( as displacement is a vector quantity so, its magnitude is represented by | displacement | . )

Answer 2

Answer:

            5 m

Explanation:

               =√(3)²+(4)² m

               =√9+16 m

               =√25 m

                =5 m