Question

A sump is full of water, when the motor started pumping the level of water decreasing 2 inches per minute then what is the level of water from the ground level after 20 minutes?​

Answer 1

Answer:

A sump is full of water, when the motor started pumping the level of water decreasing 2 inches per minute.

water from the ground level after 20 minutes=2 multiplied by 20 =40

Answer 2

Water level is  40 inch below ground level or -40 inch with respect to ground level after 20 minutes if sump is full of water and level of water decreasing 2 inches per minute

Given:

• A sump is full of water
• Level of water decreasing 2 inches per minute by a Motor

To Find:

• Level of water from the ground level after 20 minutes

Solution:

• Sump is under ground to collect desirable/undesirable liquids
• Top of sump is at ground level

Step 1:

Multiply 2 inch per minute with 20 minutes to find drop in water level in 20 minutes

Level Drop = 2 x 20 = 40 inches

Step 2:

As Sump is full of water hence initial level = ground level

Hence  level of water from the ground level after 20 minutes  is

40 inch below ground level

or -40 inch with respect to ground level.

The level of water from the ground level after 20 minutes 40 inch below ground level or -40 inch with respect to ground level.