Free help with homework

Why join Brainly?

  • ask questions about your assignment
  • get answers with explanations
  • find similar questions

A motor car is going due north at a speed of 50 km/h .It makes a 90° left tern without changing the speed . The change in the velocity of the car is about




This Is a Certified Answer

Certified answers contain reliable, trustworthy information vouched for by a hand-picked team of experts. Brainly has millions of high quality answers, all of them carefully moderated by our most trusted community members, but certified answers are the finest of the finest.
See picture enclosed.

Car travel from A to B and then B to C.  Initial velocity is AB and Final velocity is BC.  The following are vectors.

  Change in velocity = BC - AB  = BC + BA = BD

   Magnitude of BD  =  √(V²+V²) = √2 V = √2 * 50 = 70.7 kmph

   The direction of the change in velocity is direction of BD, 45° south of West or South west.

0 0 0
The Brain
  • The Brain
  • Helper
Not sure about the answer?
Learn more with Brainly!
Having trouble with your homework?
Get free help!
  • 80% of questions are answered in under 10 minutes
  • Answers come with explanations, so that you can learn
  • Answer quality is ensured by our experts