A 5,400 W motor is used to do work. If the motor is used for 640 s, about how much work could it do?
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Radius of circle of spiral path = 6 m
Time period = 5 s
So the total length of the path =
time taken by bird to cover the distance = 5 s
so the speed of the bird = distance / time
so the tangential speed in horizontal direction = 7.54 m/s
vertical velocity by which it is rising upwards = 3 m/s
so the angle with the horizontal for net speed is given as
so velocity vector will make 21.7 degree with the horizontal