Free fall velocity
This task is about using a formula to create a table, graph and using these to make a prediction.
The formula for the velocity with which an object hits the ground after free falling is
v = 10t


v is the velocity in metres per second (m/s) t is the free falling time in seconds (s) 
a)

i)

Use the formula to complete the table. 
Time of free fall, t  0  1  2  3  4  5  6 
Velocity, v  0 
ii) 
Plot the points in the table above, and join them with a line. 
Velocity of falling object

b) 
In a carsafety demonstration, cars are dropped vertically from a crane.
Emma counts 3.5 seconds between when a car is released and when it hits the ground.
What is the velocity of the car when it hits the ground? __________ m/s
