First, let's calculate the time taken for the two rocks to drop to the ground.
Tourist A
Tourist A drops the ball vertically down with no initial velocity. We can find the time taken by the ball to reach the pavement can be calculated using the equation
Here, we have
So,
Tourist B
Tourist B drops throw the rock downward at 20 degrees below the horizontal at 15m/s. We need to calculate the time taken by the rock to drop, so we are only interested in the vertical component of this initial velocity.
The vertical component is
So, we have
So,
Using quadratic formula
So, the difference is
So, the correct answer is 0.513 s.
Thank you for posting your problem to Chegg.
If you liked my solution to your problem, a thumbs up will be
highly appreciated. It motivates me to do more!
Two tourists are standing at the top of the Burj Khalifa (the tallest building in the...