HELLO I AM LOOKING FOR SOMEONE TO HELP SHOW ME A STEP BY STEP SOLUTIONON HOW TO SOLVE #3. I WOULD LIKE TO UNDERSTAND THE SOLUTION AND NOT JUST SIMPLY RECEIVE THE ANSWER. THANK YOU

5.3 Questions 1. Describe the energy transformations occurring in each of Assuming that the roller coaster starts from rest at the top the following situations: ban of the first hill and there is no friction on the roller coaster, (a) A ball falls from the top of a building. what is the minimum height of the first hill? m (b) An archer pulls a bow back and releases the arrow. (c) A firework explodes. (d) An incandescent light bulb comes on. (e) A gasoline lawnmower cuts the lawn. 2. A golf ball of mass 45.9 g is launched from a height of 8.0 m above the level of the green at a speed of 20.0 m/s. 16 m At the maximum height above the green, the ball is moving at 12 m/s. Assume there is no air resistance acting on the ball. Calculate the following for the golf ball: ground level (a) the total mechanical energy at the start (assume the Figure 6 level of the green to be the reference level) (b) the maximum height of the ball above the green 4. A net force acts on an object initially at rest, giving it an (c) the speed of the ball when it strikes the green acceleration, a, while moving it a distance, Ad, forward across a horizontal surface. mo 3. Many roller coasters have loops where carts roll on a (a) Use kinematics equations to show that v? = 2and. track that curves sharply up into the air. At the top, the (b) The final total mechanical energy is & mv people are upside down (and usually screaming). For 2 safety reasons, many of these roller coasters must have a Substitute the equation for the final velocity into the minimum speed at the top of the loop. In the roller coaster shown in Figure 6, the cart must have a minimum speed equation for the final kinetic energy and simplify. What does this new equation prove? of 10.0 m/s at the top of the loop to make it around safely