1. Angel Falls in southeastern Venezuela is the highest uninterrupted waterfall

Question

1. Angel Falls in southeastern Venezuela is the highest uninterrupted waterfall in the world, dropping 979 m (3212 ft). Assume that it takes 14 s for the water to fall from the lip of the falls to the river below. If the water lands 53 m from the base of the vertical cliff, what was its horizontal speed at the top? (ANSWER IN m/s)

2. If a baseball is hit with a vertical speed of 40 m/s and a horizontal speed of 6 m/s, how long will the ball remain in the air? (seconds) (Assume for the purposes of this question that the ball starts at nearly ground level.) How far will it go? (m)

Explanation / Answer

part 1 )

range = vx * t

53 = vx * 14

vx = horizontal velocity

vx = 53/14 = 3.7857 m/s

part 2 )

time of flight = total time in air

t = 2vosintheta/g

vosintheta =vertical component of velocity = 40 m/s

t = 8.16 s

range = vx * t

d = 6 * 8.16 = 48.96 m

Related Questions

Navigate

• Browse (All)
• Browse 1
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.