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26 Nov 2019
During a certain trip in Colorado, a car runs uphill at a constantspeed of 99.5km/hr for 76.8 minutes, runs downhill at constantspeed 153 km/hr for 28.8 minutes and runs on level ground atconstant speed 121km/hr for a distance of 280km returning to it'sorignal position.
1.Find the car's average speed over the entire trip in km/hr
2. Find the car's average velocity over the entire trip inkm/hr
3.The postion of a car moving along the x-axis is given by theequation x=0.864t squared
-0.268tsquared +0.657 find the speed of the object at t=8.68seconds,
During a certain trip in Colorado, a car runs uphill at a constantspeed of 99.5km/hr for 76.8 minutes, runs downhill at constantspeed 153 km/hr for 28.8 minutes and runs on level ground atconstant speed 121km/hr for a distance of 280km returning to it'sorignal position.
1.Find the car's average speed over the entire trip in km/hr
2. Find the car's average velocity over the entire trip inkm/hr
3.The postion of a car moving along the x-axis is given by theequation x=0.864t squared
-0.268tsquared +0.657 find the speed of the object at t=8.68seconds,
