A cabinet weighing 100 N is placed on a floor. The amount of contact area between the cabinet and the floor is 0.5 m2. How much
1 answer:
Answer:
p = 200Pa
Explanation:
From its definition, the pressure depends on the force exerted on the floor by the cabinet, and the perpendicular area in which it is applied. This is expressed in the formula:
Since the force the cabinet exerts on the floor is its weight, we can use the given values to calculate the pressure exerted on the floor:
In words, the pressure the cabinet exerts on the floor is 200Pa.
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Answer: 13.15m/s, N 20.052°W
Explanation: The diagramatic representation of this question has been attached to this answer, please kindly find below because references will be made to it.
Due to the fact that the boat is moving northwest with a speed of 14m/s and the speed of the water flows at 4.8m/s due north, they can be represented using triangular vectors.
From the attachment below.
H = 14m, O= 4.8m and A=?
Using phythagoras theorem, we have that
H² =O² + A²
14² = 4.8² + A²
A² = 14² - 4.8²
A² = 144 - 23.04
A² = 120.96
A= √120.96
A= 13.15m
The direction of the vector is gotten by using the fact that
tan θ = O/A
tan θ = 4.8/14
tan θ = 0.3650
θ = tan^-1 (0.3650)
θ= 20.052°
From the attachment, the vector is lying north east west, hence direction is N 20.052° W
