Question
The diagram shows a cuboid. pressure=(force)/(area) The cuboid has height 3 m The volume of the cuboid is 21m^3 The pressure on the floor due to the cuboid is 25newtons/m^2 Work out the force exerted by the cuboid on the floor.
Answer
4.4
(175 Votes)
Ffion
Master · Tutor for 5 years
Answer
175 N
Explanation
## Step 1: First, we need to find the area of the base of the cuboid. Since we know the volume of the cuboid and its height, we can use the formula for the volume of a cuboid to find the area of the base. The formula for the volume of a cuboid is:###
where
is the volume,
is the area of the base, and
is the height. ## Step 2: We rearrange the formula to solve for
:###
Substituting the given values, we find:###
So, the area of the base of the cuboid is 7
.## Step 3: Now, we can use the formula for pressure to find the force exerted by the cuboid on the floor. The formula for pressure is:###
where
is the pressure,
is the force, and
is the area. ## Step 4: We rearrange the formula to solve for
:###
Substituting the given values, we find:###
So, the force exerted by the cuboid on the floor is 175 Newtons.