Question

a insect crawls up 5 cm a second on a 60 cm vertical rod and fall 2 cm after every seconds how long it will take a insect to climb rod​

Answer 1

Answer:

40 s

Step-by-step explanation:

In first second climbs- 5 m

in next second falls down 2 m

therefore, in 2 sec, length climbed is 5-2=3 m

therefore,

to climb 3 m, time needed- 2 s

to climb 1 m time needed-2/3 s

to climb 60 m, time needed= 2/3*60=40

Ans. the insect will take 40 s to climb the 60 m rod