Question

look at the diagram at right. if you walk at the speed of 8 metre per second how much longer will take you to walk form a to b and then from b to c then directly from a to c... please give me answer​

Answer 1

answer :

Step-by-step explanation:

if u r walking at 8m/s then

A to B : time = dis / speed

= 40 ÷ 8 = 5sec

B to C : 30 ÷ 8 = 3.75 sec

and from A to C : first pythagoras thrm AC square = 40 square + 30 square

AC = 50

therefore time to cover A to C = 50÷8 = 6.25sec

Answer 2

Answer:

Use Pythagoras to find AC ,

${x}^{2} = {40}^{2} + {30}^{2} = 1600 + 900 = 2500 \\ x = 50$

it will be 50 .

( Most common Pythagoras triple 3 , 4 , 5 )

Now from

A to B then B to C total distance = 30 + 40 =70 m

So time = distance/time = 70/8 = 35/4 s = 8.75 s

Directly A to C distance = 50m

So time = 50/8 = 25/4 s = 6.25 s