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kramer
3 years ago
6

A 7.0kg object rests on a horizontal frictionless surface. What is the magnitude of the horizontal

Physics
1 answer:
sukhopar [10]3 years ago
6 0

Answer:

16.1 N

Explanation:

From the question,

F = ma.............................. Equation 1

Where F = horizontal force, m = mass of the object, a = acceleration .

Given: m = 7.0 kg, a = 2.3 m/s²

Substitute this values into equation 1

F = (7.0×2.3)

F = 16.1 N.

Hence the magnitude of the horizontal force is 16.1 N

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The focal length is 16.86 cm and the distance of the man  if he wants to form an upright image of his chin that is twice the chin's actual size is 8.43 cm.

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\dfrac{1}{16.86}=\dfrac{1}{u}-\dfrac{1}{2u}

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