Question

if an elevator decends at the rate of 2 1/2 m per min , then what distance will the elevator have decended after 7 minutes

Answer 1

Answer: 17.5 m

Step-by-step explanation:

Here, the elevator has uniform velocity.

Velocity = 2.5 m/min

Time  = 7 min

Velocity = Displacement / Time

Here, displacement = distance because the motion is in one direction only.

Velocity = Distance/Time

Velocity × Time = Distance

2.5 × 7 = Distance

17.5 = Distance

∴ Distance = 17.5 m

Therefore, the elevator will have descended 17.5 m after 7 minutes.