1. 
The antelope was travelling at 18.61 m/s five seconds ago, but now it is standing still. Guess it got tired of running. What was its acceleration?


2. 
Isaac used Archimedes' method to calculate the density of a rock he found near Lake Laronde. The mass of the rock is 107 grams and it displaces 49 ml of water. What is its density? Round your answer to the nearest thousandth. (hint: density = mass / volume)


3. 
The momentum (in kg m/s) of an object depends on the object's mass and velocity (momentum = mass times velocity). Suppose you are a goalkeeper on a soccer team. The ball comes at you with a velocity 15 m/s. If the ball has a mass of 1,594 grams, what is the momentum of the ball when it strikes your hand as you deflect it from the goal in an incredible diving save? _________ kg m/s


4. 
Hunter is a marine biologist studying sponges in Seaside Bay. There are some short round ones (SR) and some tall long ones (TL). There are a few that are tall and branched (TB) as well. According to his recent population survey these organisms exist in an approximate SR:TL:TB ratio of 3.1:2.9:1.9. If there are 248 TL, what is the size of the total sponge population in Seaside bay? Round your answer to the nearest whole number.


5. 
* This is a premade sheet. Use the link at the top of the page for a printable page. 

6. 
Rocket M accelerates at 4,276.8 m/s^{2}. Not bad. Rocket 9 accelerates at 9697 m/s^{2}. Even better. Better by how much?

