Kinematics Quiz 1.A bicycle travels with a 4.5m/s velocity for 10 minutes. How far does it travel? 2.Rearrange the following equation d = ½ a t 2 + v i t for initial velocity? 3.A train is accelerating at a rate of 2 km/hr 2. If its initial velocity is 20km/hr what is its velocity after 30 second? 4. An airplane traveling at 135m/s accelerates to 165 m/s during a 45 second interval of time. How far does the plane travel during this time?

1.A bicycle travels with a 4.5m/s velocity for 10 minutes. How far does it travel? Knowns V = 4.5m/s T = 10 minutes 10min x 60sec = 600sec d = ? V = d / t = d = v t d = 4.5m/s x 600sec =2700m 2.Rearrange the following equation d = ½ a t 2 + v i t for v i for initial velocity? d = ½ a t 2 + v i t Step one: subtract ( ½ a t 2 ) Step two: divide by t V i = d - ½ a t 2 / t

3.A train is accelerating at a rate of 2 km/hr 2. If its initial velocity is 20km/hr what is its velocity after 30 second? Kowns a = 2 km/hr 2 V I = 20 km/hr t = 30 sec V f = ? V f = V I + a t V f = 20k/hr + 2 km/hr 2 30 sec = 80 km/hr 4. An airplane traveling at 135m/s accelerates to 165 m/s during a 45 second interval of time. How far does the plane travel during this time? Knows V i = 135m/s V f = 165m/s t = 45 sec d = ? d = (V f + V i ) / 2 * t D = (165m/s + 135m/s)/ 2 * t = 6750m