Question

A car travels point A to point B to the speed of 40 kph and then travels same way point B to point A to the speed of 60 kph. Find the average speed of car ​

Answer 1

Step-by-step explanation:

average speed=(60+40)/2=50kph

Answer 2

Answer:

Since Initial and final position are same displacement is zero.

Step-by-step explanation:

Time taken to travel distance S

t

1

=

V

1

S

=

30

S

......(1)

t

2

=

V

2

S

=

50

S

……(2)

Average speed=

totaltime

Totaldistance

=

t

1

+t

2

S+S

=

30

S

+

50

S

S+S

Average speed=

30+50

100×30

=37.5kmh

−1

Since Initial and final position are same displacement is zero.