Question

. A car moves on a straight road for first half time with the constant
speed of 20 m/sec. and the next half time with a constant speed of 60
m/sec, then calculate average speed.​

Answer 1

Answer:

80 secs/m

Explanation:

pls mark me as the brainliest

Answer 2

$\huge\underline{ \mathbb\red{❥A} \green{n}\mathbb\blue{S} \purple{w} \mathbb \orange{E}\pink{r}}\:$

Assume the total time is 60 seconds, consisting of two halves of 30 seconds each.

In the first 30 seconds,

The car travels 30 x 20=600m

In the 2nd half,

The car travels 30 x 60=1800m

Then,

1800+600/60

=2400m/60 secs

=40 m/s average

$\huge</p><p>\underline{\red{Hope\:It\:Helps\:}}</p><p>$