Gayle runs at a speed of 4.30 m/s and dives on a sled, initially at rest on the top of a frictionless snow-covered hill. After she has descended a vertical distance of 5.00 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. What is their speed at the bottom of the hill if the total vertical drop is 15.0 m? Gayle's mass is 47.5 kg, the sled has a mass of 5.40 kg and her brother has a mass of 30.0 kg.
Gayle runs at a speed of 4.30 m/s and dives on a sled, initially at rest...
Gayle runs at a speed of 3.45 m/s and dives on a sled, initially at rest on the top of a frictionless snow-covered hill. After she has descended a vertical distance of 5.00 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. What is their speed at the bottom of the hill if the total vertical drop is 15.0 m? Gayle's mass is 52.0 kg, the sled has a mass...
(5) Gayle runs at a speed of 4.49 m/s and dives on a sled, which is initially at rest on the top of a frictionless snow.covered hill. After she has descended a vertical distance of 5.46 m, her brother, who is initially at rest, hops on her back and together they continue down the hill. What is their speed at the bottom of the hill if the total vertical drop is 16.6 m2 Gayle's mass is 51.4 kg, the sled...
A 51.9-kg person, running horizontally with a velocity of +3.43 m/s, jumps onto a 14.2-kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. (b) The sled and person coast 30.0 m on level snow before coming to rest. What is the coefficient of kinetic friction between the sled and the snow?
A 67.6-kg person, running horizontally with a velocity of +4.85 m/s, jumps onto a 19.1-kg sled that is initially at rest. (a) Ignoring the effects of friction during the collision, find the velocity of the sled and person as they move away. (b) The sled and person coast 30.0 m on level snow before coming to rest. What is the coefficient of kinetic friction between the sled and the snow?
Conservation of energy A child on a sled slides from rest from the top of a 20.0 m high very slippery hill. The total mass of the child and the sled is 30.0 kg. Treat the bottom of the hill as a reference. a. b. c. d. e. What is the kinetic energy of the child and sled at the top? What is the potential energy at the top? What is the potential energy at the bottom? What is the...
1) Shayla is sliding in a sled from a top of a 5-m-high snow hill ( starting from rest.) At the bottom of the hill, her sled hits Tom, who falls into the sled. Toms's mass is the same as Shayla's and her sled altogether. What is the speed of the sled after Tom fell in? Neglect friction w/ snow. 2) You are standing by a smooth frozen lake, and longing to propel a snowball over the lake. In which...
A 15.0 kg stone slides down a snow-covered hill, leaving point A at a speed of 10.0 m/s. There is no friction on the hill between points A and B, but there is friction on the level ground at the bottom of the hill, between B and the wall. After entering the rough horizontal region, the stone travels 100 m and then runs into a very long, light spring with force constant 2.0 N/m. The coefficients of kinetic friction between...
A 5-kg sled is sliding on a horizontal rough surface with a speed of 18 m/s. The coefficier kinetic friction between the block and surface is 0.15. After travelling 25-m, it encounters as covered hill (where friction can be ignored) and slides uphill. The hill makes an angle of 38。 horizontal. (a) How much work is done against friction during the 25-m horizontal travel? the maximum elevation on the hill the block reaches? (c) How much work is done against...
A dog runs happily througn lelu.l for 0.50 m/s for 2 min, and then turns due east and runs at 2.0 m/s tor3 I What is the average speed of the dog? What is the average velocity? a. b. ) child is pulled along the flat ground on snow on a sled by his father. The chi together have a mass of 33 kg. The father pulls the sled by a rope which is angled upward at a 40 degree...
PRINTER VERSION BACK NEXT Chapter 07, Problem 28 After skiding down a snow-covered hill on an inner tube, Ashley is coasting across a level snowfield at a constant velocity of +2.0 m/s. Miranda runs after her at a velocity of +5.1 m/s and hops on the inner tube. How fast do the two of them slide across the snow together on the inner tube? Ashley's mass is 58 kg, and Miranda's is 72 kg. Ignore the mass of the inner...