A hot-air balloon of diameter 12 m rises vertically at a constant speed of 15 m/s . A passenger accidentally drops his camera from the railing of the basket when it is 15 m above the ground. If the balloon continues to rise at the same speed, how high is the railing when the camera hits the ground?

A girl stands on a fishing pier and tosses a pebble into a pond. The pebble is thrown from a height of 2.50 m above the water surface with a velocity of 4.60 m/s at an angle of 60.0° above the horizontal. As the pebble strikes the water surface, it immediately slows down to exactly half the speed it had when it struck the water and maintains that speed while in the water. After the pebble enters the water, it moves in a straight line in the direction of the velocity it had when it struck the water. If the pond is 6.20 m deep, how much time elapses (in s) between when the pebble is thrown and when it strikes the bottom of the pond? 5.195 X

While exploring the canopy of the rainforest in equatorial South America, Anastasia falls from a branch 35.0 meters high. Exactly 1.3 seconds later Joe falls from the same branch. How high above the ground is Joe when Anastasia splats into the mud below? (the mud is very squishy and nobody is injured)

While standing on the roof of a building, a boy throws a tennis ball with an initial speed of 15 m / s at an angle of 35 ° below the horizontal. The ball lands on the ground 2.8 s later. How tall, in meters, is the building?

In a circus act, an acrobat rebounds upward from the surface of a trampoline at the exact moment that another acrobat, perched 9.0 m above him, releases a ball from rest. While still in flight, the acrobat catches the ball just as it reaches him. If he left the trampoline with a speed of 8.0 m/s, how long is he in the air before he catches the ball?

A hot-air balloon is rising upward with a constant speed of 2.39 m/s. When the balloon is 6.74 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?

A hot-air balloon is rising upward with a constant speed of 3.76 m/s. When the balloon is 2.06 m above the ground, the balloonist accidentally drops a compass over the side of the balloon. How much time elapses before the compass hits the ground?

A helicopter is ascending vertically with a speed of 3.2 m/s. At a height of 90.8 m above the ground, a package is dropped from the window. How much time does it take for the package to reach the ground? Answer: Check

A juggler performs in a room whose ceiling is 4.62 m above the level of his hands. He throws a ball upward with an upward speed of v 0 so that it just reaches the ceiling. At the instant when the first ball is at ceiling, the juggler throws a second ball upward with 4v 0 /3 velocity. At what distance above the juggler’s hand do they pass each other?

A brick is thrown upward from the top of a building at an angle of 40° to the horizontal and with an initial speed of 17 m/s. If the brick is in flight for 2.5 s, how tall is the building?