Conservation of Energy Whiteboard Problems 1. A 40.0 kg test rocket is fired vertically on a level surface. Its fuel gives it a kinetic energy of 3.00 x10³ J before it leaves the pad. What is the maximum height the rocket will reach? 2. A 20.0 kg object is dropped off of a 30.0 m cliff. How fast is the object going when it hits the ground? 3. A 150. kg roller coaster is released from rest at the top of a 50.0 m hill. How fast will it be going if the second hill is 10 m high? 4. A 0.300 kg toy has a spring attached to it so it can be shot straight up into the air. The spring is compressed 0.0500 m and has a spring constant of 300. N/m. A) Find the KE of the object when it is shot into the air. B) Find the maximum height of the toy (relative to the end of the barrel).

Q: 5. A sled of mass M is sliding at speed v, on a frozen lake when it hits a patch of rough ice and…

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Q: A 75 kg runner has a speed of 5.45 m/s. What is the runner's kinetic energy?

A: Mass of the person is m=75 kg Speed of the person is v=5.45 m/s Note: 1 N=1 kg·m/s2 1 J=1 Nm 1…

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Q: 1. A box is moving along a ramp, with a velocity directed up the ramp and an acceleration down the…

A: Since we only answer up to 3 sub-parts, we’ll answer the first 3. Please resubmit the question and…

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Q: 6. A miniature golf course has a hole in which the fairway is 5.5 m above the green. If you hit the…

A: Solution: Given that h  = 5.5 m to find the speed as it came from the pipe

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A: Work done by a force to raise an object to a height is called the potential energy of the object

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Q: . What is the speed of the block and bullet when they first start moving together?  b. What is the…

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Q: more potential energy will the rocket have when it reaches the top where its velocity is zero?…

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Q: A B A student builds a roller coaster as shown. The heights of the points are A= 2.1 m B= 0.9 m C= 0…

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A: Given, Mass of block A, mA=3.70 kg, and Mass of block B, mB=6.0 kg,

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Q: a. A 10.0 kg object has an initial velocity of (5.0i + 3.0j) m/s. What is its kinetic energy at this…

A: The mass of the object, The initial velocity of the object,

Instantaneous Power

Power is defined in physics as the amount of energy transmitted or transformed per unit time. The watt is the unit of electricity in the International System of Units, equivalent to one joule per second.