oct 20 2009

[austorior]

Toni steps off a 10 meter board and falls into a swimming pool. What is her (positive) velocity at impact?
What are some important physics formulas we gotta know?

The height and diameter of a cone are equal in length. What is the percent difference in total and lateral surface areas?

A red car accelerates from rest at 900mph/hr to velocity of 35mph. Three seconds later, a blue car accelerates from the same point in the same direction at 450 mph/hr, to a velocity of 45mph. How long must the blue car travel at 45mph to catch up with the red car?

Russian Matryoshka nesting dolls have the same shape and fit inside each other. If the largest of a set of 6 dolls weighs 1.5 lbs, and the height of each doll is 20% reduced, what is the weight of the set?

A 2in long rubber band is stretched. The required force F increases with increasing length L according to [unparseable or potentially dangerous latex formula] where F is in lbs and L is in inches. If work is the area under the F-L curve, how much work is needed to extend the rubber band from its original length to a final length of 5 inches?

[88bobcat]

[88bobcat]