Part one ) A dragster and driver together have mass 926.8 kg . The dragster, starting from rest,
attains a speed of 26.7 m/s in 0.58 s.
Find the average acceleration of the dragster during this time interval.
part two) What is the size of the average force on the
dragster during this time interval?
part three) Assume the driver has a mass of 70.9 kg .
What horizontal force does the seat exert
on the driver?

Amachinist needs to remove a tight fitting pin of material a from a hole in a block made of material b. the machinist heats both the pin and the block to the same high temperature and removes the pin easily. what statement relates the coefficient of thermal expansion of material a to that of material b? a) the situation is not possible, heating block b will shrink the hole in the material as the material expands with increasing temperatureb) material b has the same coefficient of expansion as does material ac) material b has a negative coefficient of expansion and a has a positive coefficient of expansiond) material a has a greater coefficient of expansion than does material be) material b has a greate

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