Physics, 19.11.2019 00:31 fernandofhn1844
Abicycle rider has a speed of 19.0 m/s at a height of 55.0 m above sea level when he begins coasting down hill. the mass of the rider and his bike is 88.0 kg. sea level is the zero level for measuring gravitational potential energy. ignoring friction and air resistance, what is the rider’s total mechanical energy when he coasts to a height of 25.0 m above sea level
Answers: 2
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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?
Answers: 3
Abicycle rider has a speed of 19.0 m/s at a height of 55.0 m above sea level when he begins coasting...
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