A car starts from rest at a stop sign. It accelerates at 4.2 m/s2 for 6.8 s , coasts for 2.1 s , and then slows down at a rate of 3.1 m/s2 for the next stop sign. Part APart complete How far apart are the stop signs

Anne applies a force on a toy car and makes it move forward. what can be said about the forces acting on the toy car at the moment anne applies the force?

If steel is more dense that lake water, why can a boat float

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)