A truck travelling due north at 50 km h–1 turns west and travels at the same speed. What is the change in velocity ?

Foundation

Physics Foundation

Types of Motion Distance and Displacement

Speed Velocity and Acceleration

Force and Newtons Law of Motion

Question

A truck travelling due north at 50 km h^–1 turns west and travels at the same speed. What is the change in velocity ?

A

50 km h^–1 north-west

B

50 km h^–1 south-west

C

50 $\sqrt{2}$ km h^–1 north west

D

50 $\sqrt{2}$ km h^–1 south-west

LiveFree JEE Main Previous Year Online Papers Live Free JEE Advance Previous Year Online Papers

JEE Advance

College PredictorLive

Know your College Admission Chances Based on your Rank/Percentile, Category and Home State.

Get your JEE Main Personalised Report with Top Predicted Colleges in JoSA

${\vec{V}}_{AC} = {\vec{V}}_{AB} + {\vec{V}}_{BC}$

${\vec{V}}_{AC} = \sqrt{| {\vec{V}}_{AB} |^{2} + | {\vec{V}}_{BC} |^{2}}$

= $50 \sqrt{2}$ km h^–1 south - west