Brittany is changing the tire of her car on a steep hill 20.0 m high. She...

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Brittany is changing the tire of her car on a steep hill 20.0 m high. She trips and drops the 10.0-kg spare tire, which rolls down the hill with an initial speed of 2.00 m/s and then rolls us the next hill which is 5 m high. a. What is the initial potential energy of the tire if the top of the second hill is considered the zero height? b. What is the initial kinetic energy of the tire? What is the total initial energy of the tire? d. What is the speed of the tire at the top of the 5.00 m high hill? Brittany is changing the tire of her car on a steep hill 20.0 m high. She trips and drops the 10.0-kg spare tire, which rolls down the hill with an initial speed of 2.00 m/s and then rolls us the next hill which is 5 m high. a. What is the initial potential energy of the tire if the top of the second hill is considered the zero height? b. What is the initial kinetic energy of the tire? What is the total initial energy of the tire? d. What is the speed of the tire at the top of the 5.00 m high hill?