A 69.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.9 m/s. The goal of this problem is to find the maximum height she attains and her speed at half the maximum height a) select the height when the athlete's speed is 8.9 m/s as y=0. what is her kinetic energy at this point?

Q: A 70.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.9 m/s.…

A: The 70 kg athlete jumps off the trampoline with an initial velocity of 8.9 m/s. The force acting on…

Q: A 69.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.9 m/s.…

A: The objective of the question is to find the maximum height the athlete attains, her speed at half…

Q: What is potential energy? Provide a simple explanation. b) An apple on a tree is hanging 3m from…

A:

Q: A 69.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.9 m/s.…

A: The objective of the question is to find the kinetic energy of the athlete at the maximum height she…

Q: A 68.5-kg runner has a speed of 3.00 m/s at one instant during a long-distanče event. (a) What is…

A: (a) The kinetic energy of the runner is, KEi=12mv2=1268.5 kg3.00 m/s2=308.25 J=3.08×102 J

Q: A 1.80 m tall person lifts a 1.75 kg book off the ground so it is 2.20 m above the ground. a) What…

A:

Q: An astronaut on the moon (where g = 1.6 m/s^2) drops a 20 kg boulder from a height of 30 m…

A: Given data: Mass of the boulder is, m = 20 kg Acceleration due to gravity on the surface of the moon…

Q: A person standing at the bottom of a 10m deep hole in the ground throws a 0.5 kg ball straight up at…

A:

Q: A ball of 1,500 grams is kicked at an angle of 35° with the ground with an initial velocity V0. a)…

A:

Q: Explain the relationship between kinetic energy and gravitational potential energy during a vertical…

A: Refer explanationExplanation:During a vertical jump, kinetic energy and gravitational potential…

Q: a toy car (0.50kg) runs on a frictionless trackand has an initial kinetic energy of KE =1.6. over…

A:

Q: A Net Force Fnet=(x-3x2)i + (2y2-y3)j acts on a 3.5 kg particle. a) Calculate the net work done on…

A:

Q: A person standing on the ledge of a roof of 75m high building throws a 1.5 kg ball staright up with…

A:

Q: Estimate the kinetic energy of your car as you are driving down the highway. (If you don’t own a…

A: let the car intially travel on road at height h with initial speed u. Let the mass of car be m

Q: A 49.5-kg athlete leaps straight up into the air from a trampoline with an initial speed of 9.1 m/s.…

A: At maximum height the velocity of the athlete will be zero. According to the conservation of energy…

Q: A 2.5 kg piece of wood falls onto a carpenter’s table from a height of 2.0 m above the table. T/I…

A:

Q: A 72.0 kg swimmer jumps into the old swimming hole from a tree limb that is 3.75 m above the water.…

A:

Q: A certain 80-kg mountain climber has an average power output of 0.1 hp. a) How much work does she…

A: Given: The mass of the mountain climber is 80 kg. The average power is 0.1 hp. The height of the…

Q: A 69.0-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.9 m/s.…

A:

Q: A 68.5-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.7 m/s.…

A:

Q: A penny is taken from the ground floor to the top of the Empire State Building. Assume that the…

A: a) Penny's kinetic energy just before it hits the road: Use conservation of energy because…

Q: A projectile is launched at a very high wall 15 meters from the launching point. The launch angle is…

A: Distance of the object from the wall is D = 15 m Angle of projectile is θ=40∘ Initial speed of the…

Q: An object with an initial potential energy of 40 J is dropped from rest. After a while, its…

A: Initial potential energy is PEinitial = 40 J Potential energy after a while is PEfinal = 10 J…

Q: Can the total work done on an object during a displacement be negative? Explain. If the total work…

A: The work done on an object can be given as, Here, F, d, and θ represent the force, displacement,…

Q: A skier (m=61.00 kg) starts sliding down from the top of a ski jump with negligible friction and…

A: The mass of the skier: m = 61.00 kg.The height at which the skier jumps off the ramp: h = 6.70 m.The…

Q: A 55.5-kg athlete leaps straight up into the air from a trampoline with an initial speed of 8.2 m/s.…

A: a) Assume that there is no friction due to air. Athlete interact with the gravitational field of…

Q: (a)By what factor does the kinetic energy of a car increase when its speed doubles? triples? (b)…

A:

Q: The energy needed to increase the speed of a certain car from 22 m/s to 54 m/s is 2900 kJ. A) What…

A: A) From the formula to find the change in kinetic energy of a body, we know that, KE= mv2/2 2900000=…

Q: usual, Hampus is out cycling. He is driving at 30.0 km/ h when he comes to a small hill that is 11 m…

A: Given  speed v = 30.0 km/h               = 30×1000/3600  m/s               = 8.33 m/s  mass m = 95…

Q: An athlete throws a 1.5 kg ball with a horizontal speed of 9 m/s, from a height of 4.8 metres above…

A: