a tiny fly is buzzing about in goodspeeds car if goodspeeds car is traveling at 100km/h [N] what is the velocity of the fly when its moving
north at 7.5m/s
east at 9.5m/s
To find the velocity of the fly when it is moving north at 7.5m/s and east at 9.5m/s while the car is traveling at 100km/h (which is equivalent to approximately 27.78 m/s), you can use vector addition.
First, convert the velocity of the fly moving north and east into vector form:
Velocity north = 7.5 m/s * (0, 1) = (0, 7.5) m/s
Velocity east = 9.5 m/s * (1, 0) = (9.5, 0) m/s
The velocity of the fly relative to the car is the sum of the velocity of the fly and the velocity of the car:
Velocity of fly relative to car = Velocity of fly + Velocity of car
Now, add the two velocity vectors:
(0, 7.5) + (9.5, 0) = (9.5, 7.5) m/s
Therefore, the velocity of the fly when it is moving north at 7.5m/s and east at 9.5m/s while the car is traveling at 100km/h is 9.5 m/s north and 7.5 m/s east.