TAB= 1.50 N Correct Pushing a Chair along the Floor A chair of weight 130 N lies

Question

TAB= 1.50 N Correct Pushing a Chair along the Floor A chair of weight 130 N lies atop a horizontal floor, the floor is not frictionless. You push on the chair with a force of F-42.0 N directed at an angle of 37.0 below the horizontal and the chair slides along the floor. Part A Using Newton's laws, calculate n, the magnitude of the normal force that the floor exerts on the chair Express your answer in newtons. You did not open hints for this part ANSWER: ± Suspending a Speaker A loudspeaker of mass 25.0 kg is suspended a distance of h = 1.00 m below the ceiling by two cables that make equal angles with the ceiling. Each cable has a length of 2.90 m

Explanation / Answer

Given,

F = 42 N ; theta = 37 deg

W = mg = 130 N

we need to find the normal force.

The normal force will be:

N = mg + F sin(theta)

N = 130 + 42 x sin37 = 155.28 N

Hence, N = 155.28 N

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