Draw the outlines of the two cars, one with the streamlined shape to reduce air resistance, and one whose shape is not streamlined. Explain why one may be able to go faster than the other.

The rigid beam is supported by the three suspender bars. bars ab and ef are made of aluminum and bar cd is made of steel. if each bar has a cross-sectional area of 450 mm2, determine the maximum value of p if the allowable stress is (σallow)st = 200 mpa for the steel and ( σallow)al = 150 mpa for the aluminum. est = 200 gpa and eal = 70 gpa.

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?

Based on this activity, is kinetic energy always transformed into potential energy?