Daniel successfully shoots the ball through the hoop. The ball was shot from 1.82 m above the ground and the hoop is 3.048 m above the ground. The basketball was shot at an angle of 65.0 °and the ball was in the air for 0.850 s. a. Calculate the initial speed of the ball as the player took the shot. b. Calculate the displacement of the hoop as measured from the initial position of the ball.

A ball has an initial velocity of 160 m/s at an angle of 30 degrees horizontally. This means that the initial vertical velocity of 80m/s and its initial horizontal velocity is 139m/s. Find its position and velocity after 5 seconds. a. Horizontal Displacement b. Find the Vertical Displacement c. Horizontal and Vertical Component of Velocity

A dolphin wants to swim directly back to its home bay, which is 0.800 km due west. It can swim at a speed of 4.20 m/s relative to the water, but a uniform water current flows with speed 2.83 m/s in the southeast direction.  a. What direction should the dolphin head? Enter the angle in degrees where positive indicates south of west and negative indicates north of west. anser in degrees b. How long does it take for the dolphin to swim the 0.800-km distance home? answer in min

Cannon problem: There is a new cannon entering service. The artillery crews need some information about the cannon's behavior so they can make adjustments to the firing angle as needed. When the engineers tell the artillery crew the range to the target, the crew must be able to calculate and set the proper firing angle for the cannon quickly. a) In order to calculate the proper firing angle what do they need to know about the cannonball leaving the cannon? (Ignore the height of the cannon above the ground. For now we will assume it makes little difference) b) Given your answer for part a, we need to identify the point in the cannonball's flight when it has its "initial velocity". The cannonball is clearly moving inside the barrel of the cannon, but at which point in the cannonball's path do we mark the initial velocity? The cannonball is packed onto a mass of gunpowder in the base of the cannon. When the powder is ignited, the chemical reaction produces gas and a large amount of heat…