A ball is thrown from the top of a tower at an angle of 40o to the horizontal with an initial speed of 6.60 m/s.  During its flight, the only force acting on the ball is the force of gravity.  It takes 3.55 s until the ball hits the ground.  How tall is the tower?

In the figure, a body with a mass of 2 kg moves under the influence of two constant forces F1 = 5N and F2 = 4N in the xy plane. At time t = 0, the object is at point 0 and its speed is V = 2i + j (m / s). What is the acceleration of the particle and its position after 2 seconds in terms of the unit vector?

A ball of mass 0.4 kg, initially at rest, iskicked directly toward a fence from a point20 m away.The velocity of the ball as it leaves thekicker’s foot is 17 m/s at angle of 38 ◦abovethe horizontal. The top of the fence is 4 mhigh. The ball hits nothing while in flight andair resistance is negligible.The acceleration due to gravity is 9.8 m/sDetermine the time it takes for the ball toreach the plane of the fence.Answer in units of s.

Consider the frictionless water slide in the figure below. h₁ h₂ 1. If a 12.00kg dog starts from rest and slides down the water slide and has a velocity of 2.00 in the horizontal direction at point A, determine the height h₁ of the slide. m S m 2. If the bottom of the slide (point A) is 5.00m above the water level, how far horizontally does the dog travel between point A and when it reaches the water at point B? m оо B 3. How would increasing the mass of the dog impact your calculations above? It would result in the height of the slide being greater It would result in the height of the slide being less Equal Less than It would result in the dog's horizontal distance being greater It would result in the dog's horizontal distance being less It wouldn't impact any of the calculations 4. If the slide had friction, would the dog's velocity at point A be greater than, less than, or equal to the velocity without friction? Greater than