A rope is attached to a 50.0-kg crate to pull it up a frictionless incline at constant speed to a height of 3 meters. A diagram of the situation and a body diagram are shown below. Note that the force of gravity has two components (parailet and perpendicular component); the parallel component balances the applied force and the perpendicular component balances the normal force.

In the middle of the night you are standing a horizontal distance of 14.0 m from the high fence that surrounds the estate of your rich uncle. the top of the fence is 5.00 m above the ground. you have taped an important message to a rock that you want to throw over the fence. the ground is level, and the width of the fence is small enough to be ignored. you throw the rock from a height of 1.60 m above the ground and at an angle of 54.0 degrees above the horizontal. part a part complete what minimum initial speed must the rock have as it leaves your hand to clear the top of the fence? express your answer with the appropriate units. part b for the initial velocity calculated in the previous part, what horizontal distance beyond the fence will the rock land on the ground?