Question

Car
travel 22 kilometre South 12 kilometre West 14 kilometre not in half an hour what is the average speed displacement and velocity

Answer 1

Answer:

a) The displacement is the distance between the starting point and the final point and is the hypotenuse DA of the right triangle DAE and is calculated using Pythagora's theorem as follows:

AE = 22 - 14 = 8 km

DA ² = AE² + ED²= 8² + 12² = 64 + 144 = 208

DA = √208 = 4√13 km

b)  average velocity = displacement ÷time =  

4√13 km ÷0.5 hour = 28.8 km/h

Explanation: