If an airplane travels 250 km due north in 1/2 hour, what is its velocity?
500 km / hr
500 km / hr north
250 km / hr
I think the answer is b?
yes, you do
and yes, it is
Yes, the correct answer is b) 500 km/hr north.
To understand why the velocity is 500 km/hr north, let's break down the question. Velocity is defined as the rate at which an object changes its position. In this case, the airplane is traveling north, so the direction is important in describing its velocity.
The given information states that the airplane travels 250 km due north in 1/2 hour. To find the velocity, we divide the distance traveled by the time it took:
Velocity = Distance / Time
Velocity = 250 km / (1/2) hr
To simplify, we can multiply the numerator and denominator by the reciprocal of the time:
Velocity = 250 km * (2/1) / 1 hr
Simplifying further:
Velocity = 500 km/hr
Since the airplane was traveling north, we include the direction in the answer, making it 500 km/hr north.