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?
Which of these is a chemical property of iron? A. It is dense. B. It has a melting point. C. It is hard to bend. D. It becomes rusted.
what is gravitational potential of a motionless 20kg rock that is 100m above the surface of the earth
