An object with a mass of 7 kg lies on a horizontal surface with friction with a

Question

An object with a mass of 7 kg lies on a horizontal surface with friction with a coefficient of kinetic friction of 0.6 and a coefficient of static friction of 1.3. Two additional forces are applied to it. One force of 14 N directed at an angle of 33 degrees below the horizontal and another force in the +x direction. Originally, the force in the x direction is just enough to start to move the mass. If the 2nd force is then increased by a factor of 4, what is the acceleration of the mass in m/s? 27 F2 F1

Explanation / Answer

accelerationof block is only created by extra increased force

Fnet = ma

3F1cos33 - 0.6x3F1sin 33 = ma

a = 3.07m/s^2

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