How much work is done if a force of 20 N moves an object a distance of 6 m?
1 answer:
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Answer:
Explanation:
Mass and weight ain't the same thing. So, for calculating weight we would use Newton's 2nd Law of Motion i.e. Force = Mass × Acceleration.
According to question,
The mass is 20kg
Acceleration is 9.8 m/s^2
Putting the given values into the formula,
F = 20 × 9.8
F = 196N
So, the weight of the rock is 196 N
Hope it helps!<3
Answer:
The deformation in the pole due to force is 0.70 mm.
Explanation:
Given that,
Height = 20.0 m
Diameter = 4.00 cm
Force = 1100 N
We need to calculate the area
Using formula of area
We need to calculate the deformation
Using formula of deformation
Where, s = shear modulus
F = force
l = length
A = area
Put the value into the formula
Hence, The deformation in the pole due to force is 0.70 mm.