A 59 kg skier pushes off the top of a frictionless hill with an intial speed of 3.6 m/s How fast will she be moving after dropping 8m in elevation? Air Resistance is negligible.
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A 59 kg skier pushes off the top of a frictionless hill with an intial speed of 3.6 m/s How fast will she be moving after dropping 8m in elevation? Air Resistance is negligible.
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- A ball of mass m = 6 kg is dropped from a height (hi = 10 m) above the ground. Find the speed of the ball when it is at a height (hf = 4 m) above the ground.Neglecting friction and air resistance, a car with an initial velocity of 43.1 km/h coasts up a hill and comes to stop at the hill's top. What must be the height of the hill (in meters)? Hint: you do not need the car's mass to solve this problem, but if interested to solve the problem using kinetic and potential energies you can use a mass of 2000kg for the car.