The position of the front bumper of a test car under microprocessor control is given by x1t2 = 2.17 m +

14.80 m>s

2

2t

2 - 10.100 m>s

6

2t

6

. (a) Find its position and acceler-

ation at the instants when the car has zero velocity.

This problem has been solved! see the answera non-uniform fire escape ladder is 6.0m long whenextended to the icy alley below. it is held at the top by africtionless pivot, and there is neglibible frictional force fromthe icy surface at the bottom. the ladder weighs 250n, and it'scenter of gravity is 2.0m along the ladder from the bottom. amother and child of total weight 750n are on the ladder 1.5m fromthe pivot. the ladder makes an angle θ with the horizontal. find the magnitude and direction ofa) the force exerted by the icy alley on the ladderb) the force exerted by the ladder on the pivotc) do your answers in part a and b depend on the angle?

Explain what makes a passenger in a turning car slide toward the door. critical thinking

Which is the best for showing percentages of different types of cars sold(gas hybrid , electric , other ) in the united states ?