Using conservation of energy, how fast would a rollercoaster be traveling at a point half way above the ground where it started from, assuming that is started at rest and 53.1 m above the ground?

Q: 26. An 80.0-kg skydiver jumps out of a balloon at an alti- tude of 1 000 m and opens his parachute…

A: (a)Without parachute, the acceleration is,

Q: A 36.3-kg child starting from rest slides down a water slide with a vertical height of 12.0 m.…

A: Given data: Mass of the child (m) =36.3 kg Vertical height (h) = 12 m Need to determine the Childs's…

Q: If a Saturn V rocket with an Apollo spacecraft attached had a combined mass of 2.9 * 105 kg and…

A:

Q: Two blocks are connected by a light string that passes over a frictionless pulley as in the figure…

A: First draw the free body diagram and solve for acceleration .  Then, using acceleration and height ,…

Q: The power needed to accelerate a projectile from rest to its launch speed v in a time t is 51.4 W.…

A:

Q: A small asteroid that has a mass of 100 kg is moving at 200 m/s when it is 1330 km above the Moon.…

A: A small asteroid that has a mass of 100 kg is moving at 200 m/s when it is 1330 km above the Moon.…

Q: Two planets of mass 2 x 1025kg are release from rest 9.0 x 1012 m apart. What is the speed of the…

A:

Q: A proton (mass m=1.67* 10-27 kg) is being acceleratedalong a straight line at 3.6 1015 m/s2 in a…

A: Since there are multiple questions posted, we will answer the first question for you. If you want…

Q: The engine in an imaginary sports car can provide constant power to the wheels over a range of…

A: initial speed u = 0 final speed v = 120 km/h = 50 x 1000/3600  = 13.89 m/s

Q: In the Marvel comic series X-Men, Colossus would sometimes throw Wolverine toward an enemy in what…

A: a. take upward direction as y direction and choose the ground position to be 0 m. take right…

Q: If you are going to launch a 10,000 kg spacecraft from Earth, (a) how much kinetic energy it must…

A:

Q: A satellite has a mass of 100 kg and is Located at 2.00 × 10 6m above the surface of Earth.(a) What…

A: Given : Mass of a satellite (m) = 100 kg Height of satellite from the surface of Earth (h) = 2.00 x…

Q: How much energy is required to lift a rocket of mass 10,000 kg from the earth's surface to a height…

A: The mass of the rocket, m=10000 kg   The height, ∆h=350 km=350×103 m

Q: A satellite with mass 848 kg is in a circular orbit with an orbital speed of 9640 m>s around the…

A: Given: To find the speed of the friction from the earth as,

Q: The concept of escape velocity can be best described as: (A) The initial speed required so that an…

A: The escape velocity of a planet is the velocity required for the object to escape from the…