I'm walking 1.6 m/s to 7-Eleven and it started to rain so I sped up to 2.7 m/s in 1.2 seconds. What is my acceleration? acceleration = (final velocity - initial velocity) / time
-0.92 m/s2
1-1.1 m/s2
0.92 m/s2
1.1 m/s2

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?