Q. A ball is thrown downward from the top of a roof with a speed of 25 m/s. After 2 s, its velocity will be: answer choices 19.6 m/s -5.4 m/s -44.6 m/s 44.6 m/s

At the lowest point of the waterfalls, water is moving at a speed of 40.0 meters per second. If the waterfall's height is 22.7 m. What is the water's velocity at the maximum height of the falls? A 36.89 m/s B 22.24 m/s 17.29 m/s D 14.93 m/s E) 33.99 m/s

An object dropped from rest from a height of 10 m will hit the ground with what velocity? O 9.9 m/s O 14 m/s 10 m/s 5 m/s O4.9 m/s

A 500kg car moving to the north at 45m/s crashes head-on into a 600kg car that is moving the south at 23m/s. When they crash, they stick together. At what velocity do the two cars move after the collision?

You throw an object up with a speed of Voy=1m/s from a height of y=25m. What is the object's final velocity, in meters per second, as it impacts the ground?

An object is launched horizontally at a height of 30 m with an initial velocity of 20 m/s. The x-component of the initial velocity is:    answer choices 20 m/s 0 m/s 15 m/s not enough information

The position of a bird in the xy-plane is given by = (4.0m-x t²)î + Btĵ where x= 2.5 m/s2 and B = 5 m/s . What is the magnitude of bird's net velocity at 2.0 s? %3D 4.0 m/s O7.1 m/s O 11.2 m/s 15 m/s O -5.0 m/s

The rocket sled starts from rest and accelerates at a = 30 + 2t m/s² until its velocity is 400 m/s. It then hits a water brake and its acceleration is a = -0.003v² m/s² until its velocity decreases to 100 m/s. What total distance sf does the sled travel?

6. A crazy, young boy on a sled is able to get up to an incredible speed of 22.5 m/s (yes, he is wearing a helmet!) along a frictionless horizontal surface while he approaches an icy hill with a vertical height of 11 m, as shown. He makes it to the top, and then flies off horizontally from the ledge of the hill. How far from the base of the hill does the boy land? 225 mis Figure 1

A ball is suspended from a light 1.3 m string . The string makes an angle of 24 degrees with the vertical. The ball is then kicked up and to the right such that the string remains taut the entire time the ball swings upwards. This kick gives the ball an initial velocity of 1.1m/s. What will be the speed, in meters per second, of the ball when it reaches its lowest point (θ = 0)?  What will be the maximum angle, in degrees, the string will make with the vertical?