A helicopter is ascending vertically with a speed of 5.2 m/s. At a height of 91.8 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

You throw a ball from the ground level at an angle of 0 = 40.0° above the horizontal. The ball lands on top of a cliff that has a height of h=10.0 m. When you release the ball, it is traveling at a speed of 25.0 m/s. How long does it take for the ball to land on top of the cliff?

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?

A hot-air balloon is rising upward with a constant speed of 2.55 m/s. When the balloon is 2.91 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?

From the edge of a high cliff overlooking a flat valley, you shoot a cannonball horizontally over the valley with an initial speed of 120 m/s. If the cliff is 400 m above the valley floor, how far does the cannonball travel in the horizontal direction before landing on the ground?

A Supply plane needs to drop a package of food to scientists working on a glacier in Greenland.  The plane flies 97 m above the glacier at a speed of 133 m/s.  How far away from the target should it drop the package? (Hint: This is a horizontal projectile. The package has the same initial speed as the plane)

A ball is thrown at a 40-degree angle above the horizontal across level ground. It is released from a height of 2.00 m above the ground with a speed of 18.0 m/s. What is the maximum height above the ground that the ball reaches?

At the edge of a cliff, a rock is thrown with an initial velocity of 18m/s at a 15 degree angle above the horizontal. If the rock is thrown from 25m above the cliff’s base, how long will it take to reach the ground the moment it is released?

Suppose a chinook salmon needs to jump a waterfall that is 1.44 m high. (a) If the fish starts from a distance 1.07 m from the base of the ledge over which the waterfall flows, find the x- and y-components of the initial velocity the salmon would need to just reach the ledge at the top of its trajectory. v0x = ? m/s v0y = ? m/s

A helicopter is ascending vertically with a speed of 3.2 m/s. At a height of 97.1 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