What acceleration will a force of 20 newtons cause if applied to a go-kart with a mass of 20 kilograms?
a. 1 meter per second per second
b. 2 meters per second per second
c. 10 meters per second per second
d. 20 meters per second per second

Use the profile illustrated for problem (1). assume that the layer of silty sand fill (sm) is placed over the entire site. estimate the thickness of the fill (h - in feet) that will cause the effective vertical stress at the center of the clay layer to increase by 517.5 pounds per square foot.

The amount of potential energy possessed by an elevated object is equal to what?

Aspring is used to stop a 50-kg package which is moving down a 20º incline. the spring has a constant k = 30 kn/m and is held by cables so that it is initially compressed 50 mm. knowing that the velocity of the package is 2 m/s when it is 8 m from the spring and neglecting friction, determine the maximum additional deformation of the spring in bringing the package to rest.