Question

a person travels from point A to B for 30 metres towards south in 4 seconds. Then he travels from point B to C for 14 M towards east in 6 seconds. What is his average speed and average velocity​

Answer 1

Answer:

Top answer · 6 votes

Given 2/9 + 5/6 We need to find the L.C.M of 9,6 (Refer to Image 4.1 ) L.C.M of 9 and 6 is = 3 × 3 × 2 = 18 So, 2/9 = (2 × 2)/(9 × 2) = 4/18 and 5/6 ...  More

Answer 2

Formula used

Hypotenuse =

$\sqrt{ base \: + \: perependicuar \: } ^{2}$

So hypotenuse = 33.10 ( approx .) which is the displacement

1) For average speed

Average speed = Distance/ time

Average speed = Distance/ time = 44m /10 sec = 4.4m/sec

2) For average velocity

Average velocity = Displacement / time

= 33.10/10 = 3.331 m/sec

Explaination on how to find displacement

:: In this case we can see that firstly the man goes south and then approaches East so ideally it should form a right angled triangle in which the shortest path i.e displacement would be the hypotenuse .

For explaination figure is provided above