A student pushes a 51.5 kilogram bookshelf across a smooth floor with a net force of 67 N.

Amodel rocket is launched from a roof into a large field. the path of the rocket can be modeled by the equation y = -0.04x^2 + 8.6x + 4.8, where x is the horizontal distance, in meters, from the starting point on the roof and y is the height, in meters, of the rocket above the ground. how far horizontally from its starting point will the rocket land? a. 0.56 m b. 215.56 m c. 431.11 m d. 215.74 m

What is the best approximation for the area of a circle with a radius of 4 m ? use 3.14 to approximate pi

Ineed to find the answer to number 2