Question

Every floor of a 20 storey building is 4m high . A lift moves 2m/s .How long it will take to move from 4th floor to 14th floor?​

Answer 1

Answer:

HI THERE I AM FOR YOUR HELP HERE!

Step-by-step explanation:

FIRST WE NEED TO KNOW,

HOW MANY FLOORS WILL LIFT TRAVEL

THATS = 14-4 =10 FLOORS

NOW, GIVEN HEIGHT OF 1 FLOOR=4m

MEANS HEIGHT OF 10 FLOORS =4×10= 40m

NOW ASKED IN QUESTION = TIME

TIME= DISTANCE/SPEED

GIVEN SPEED OF LIFT= 2 m/s

SO TIME IT WILL TAKE= 40/2

= 20 SECONDS

REGARDS/ THE VIBHANSHU

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Answer 2

Answer:

20 seconds

Step-by-step explanation:

so the lift is initially at 4th floor and it is moving with a speed 2m/s the number of floors it needs to travel is 14-4=10 so 10 floors each of height 4m so total height it needs to achieve is 4*10=40m

we know speed=distance/time here speed=2m/s and distance equals 40m

so time will be distance divided by speed which is=40/2=20

so time taken by the lift to go from 4th to 14th floor is 20s

I REALLY HOPE THIS HELPS YOU