A man is pulling a block with a mass of 6.2kg across a horizontal surface and accelerates the block at a rate of 0.50m/s. the coefficient of kinetic friction between the block and the surface is 0.24. what is the magnitude with which the man pulls?

Question

Physics

Quinten Serrano

27 November, 15:05

A man is pulling a block with a mass of 6.2kg across a horizontal surface and accelerates the block at a rate of 0.50m/s. the coefficient of kinetic friction between the block and the surface is 0.24. what is the magnitude with which the man pulls?

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Silvia · Answer 1

Mg = 6.2 x 9.81 = 60.822 This is also normal force. Coefficient of friction times normal force is the force due to friction: 60.822 x 0.24 = 14.6N F = MA so F (your force) - F (friction) = 6.2 x 0.5 = 3.1 Your answer is 3.1 + 14.6 I hope this is correct though I might be wrong.