A block is on a frictionless table, on earth. The block accelerates at 5.3\ \frac{m}{s^2} when a 10 N horizontal force is applied to it. The block and

alesterp

alesterp

Answered question

2021-01-16

A block is on a frictionless table, on earth. The block accelerates at 5.3 ms2 when a 10 N horizontal force is applied to it. The block and table are set up on the moon. The acceleration due to gravity at the surface of the moon is 1.62 ms2. A horizontal force of 5N is applied to the block when it is on the moon. The acceleration imparted to the block is closest to: 
a) 2.9 ms2 
b) 3.2 ms2 
c) 3.4 ms2 
d) 2.7 ms2 
e) 2.4 ms2

Answer & Explanation

coffentw

coffentw

Skilled2021-01-17Added 103 answers

First, you must find the mass of the block.
m=Fa=10 N5.3 ms=1.887 kg
(gravity is not factored in because there is no friction onthe table, and it is only moving horizontal)
Now, find the acceleration on the moon:
a=Fm=5 N1.887 kg=2.65 ms
Answer: d.
Jeffrey Jordon

Jeffrey Jordon

Expert2021-09-29Added 2605 answers

When horizontal force is applied on block then as per Newton's II law we will have

F=ma

10=m(5.3)

so here mass will be

m=1.89 kg

now on same block F = 5 N is applied on surface of Moon

so on surface on moon we will have

F=ma

5=1.89a

a=2.65m/s2

so above is acceleration on surface of moon

Nick Camelot

Nick Camelot

Skilled2023-06-18Added 164 answers

First, let's determine the mass of the block on Earth. We know that the block accelerates at 5.3ms2 when a 10 N force is applied. Using the formula above, we can rearrange it to solve for mass: m=Fneta. Substituting the given values, we have m=10N5.3ms2.
On the moon, the acceleration due to gravity is 1.62ms2. We want to find the acceleration of the block when a 5 N force is applied. Using the same formula, we can solve for the new acceleration: a=Fnetm. Substituting the given values, we have a=5N10N5.3ms2.
Simplifying the expression, we get a=5N·5.3ms210N. Canceling out the units, we have a=2.65ms2.
The acceleration imparted to the block on the moon is closest to (a) , 2.9ms2.
Mr Solver

Mr Solver

Skilled2023-06-18Added 147 answers

Result:
a)2.9ms2
Solution:
On Earth:
The net force acting on the block can be calculated using Newton's second law:
Net force=Mass×Acceleration
In this case, the net force is given as 10 N, and the acceleration is given as 5.3 ms2. We need to find the mass of the block.
10N=Mass×5.3ms2
Solving for mass:
Mass=10N5.3ms2=1.8868kg
On the Moon:
The gravitational force acting on the block on the Moon can be calculated using the formula:
Gravitational force=Mass×Acceleration due to gravity
Here, the acceleration due to gravity on the Moon is given as 1.62 ms2. We need to find the gravitational force acting on the block.
Gravitational force=1.8868kg×1.62ms2=3.0533N
Since the gravitational force on the Moon is 3.0533 N, and the applied force is 5 N, the net force can be calculated as:
Net force=Applied forceGravitational force=5N3.0533N=1.9467N
Now, we can use Newton's second law again to find the acceleration on the Moon:
Net force=Mass×Acceleration
Substituting the known values:
1.9467N=Mass×Acceleration
Solving for acceleration:
Acceleration=1.9467N1.8868kg=1.0311ms2
The acceleration imparted to the block on the Moon is approximately 1.0311ms2.
Among the given options, the closest value to this acceleration is a)2.9ms2.

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