Question

2) The following data is taken from a lab similar to your own. A student times a cart, starting the timer as the cart passes zero meters. At 4m, the timer reads 3.0 seconds. At 8m the timer reads 6.0 seconds. At 12m, the timer reads 10 seconds. a) Write the equation that allows you to find speed. b) Find the average speed: i) ii) (iii) iv) 0-4m 4-8m 8-12m 0-12m​

Answer 1

a) Speed = Distance/Time

b) 1.2 (m/s)

Step-by-step explanation:

a) Speed is expressed in units of distance/time. In this case the unit of speed would be m/s. Speed = Distance/Time

b) Average speed is the time it takes to go from the first to the last points (0 to 12 meters) divided by the time elapsed (in seconds here).

Average Speed = (12 - 0 meters)/(10 - 0 seconds)

Avg Speed = 1.2 meters/sec

1.2 (m/s)