a rock is sliding down a hill. Assume that the hill is 20 meters high and...
a rock is sliding down a hill. Assume that the hill is 20 meters high and the rock hs a mass of 1000 kilograms. If the rock started at the top of the hill with no initial speed, How much work is its kinetic energy when it reaches the bottom of the hill? use Gn 10m/s^v Give answer in kilojoules.
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a rock is sliding down a hill. Assume that the hill is 20 meters
high and...
Question 7 1 pts A rock is sliding down a hill. Assume that the hill is...
Question 7 1 pts A rock is sliding down a hill. Assume that the hill is 20 meters high and the rock has a mass of 1,000 kilograms. If the rock started at the top of the hill with no initial speed, how much is its kinetic energy when it reaches the bottom of the hill? Use g=10 m/s2. Give the answer in kilojoules.
A rock is sliding down a hill. As the rock is sliding down the hill, the...
A rock is sliding down a hill. As the rock is sliding down the hill, the ____________ is doing work and coverts ___________ to _____________ friction; gravitational potential energy; kinetic energy. weight; chemical energy; gravitational potential energy. normal force; chemical energy; gravitational potential energy. weight; gravitational potential energy; kinetic energy. friction; kinetic energy; gravitational potential energy
A rock is sliding down a hill. As the rock is sliding down the hill, the...
A rock is sliding down a hill. As the rock is sliding down the hill, the ____________ is doing work and coverts ___________ to ____________ a.normal force; chemical energy; gravitational potential energy. b.weight; gravitational potential energy; kinetic energy. c.friction; kinetic energy; gravitational potential energy d.friction; gravitational potential energy; kinetic energy. e.weight; chemical energy; gravitational potential energy.
A rock is sliding down a hill. As the rock is sliding down the hill, the...
A rock is sliding down a hill. As the rock is sliding down the hill, the ____________ is doing work and coverts ___________ to _____________ . a . friction; gravitational potential energy; kinetic energy. b. friction; kinetic energy; gravitational potential energy c. normal force; chemical energy; gravitational potential energy. d. weight; chemical energy; gravitational potential energy. 3. weight; gravitational potential energy; kinetic energy.
70kg is sliding up on a hill side at an A mass m incline angle 0...
70kg is sliding up on a hill side at an A mass m incline angle 0 = 30°. The initial velocity of the mass is vi 30m/s, and no external force is applied to the mass on the incline. The height of the structure ish = 25 m Note that the static friction coefficient of snow is i, = 0.5, and kinetic friction coefficient of snow is 0.4. Use the principles of energy and work to find the answen to...
Vo 5) h 200 m A driver coasts down a hill 200 m high with initial...
Vo 5) h 200 m A driver coasts down a hill 200 m high with initial speed vo 40 m/s. The road has friction that results in a negative work -1.7 x 10 J. The effect of this is that the total initial energy is reduced by this amount by the time the car reaches the bottom of the hill. Calculate the speed of the car when it reaches the bottom of the hill. The mass of driver and passenger...
university physics please show your work ..sliding down a grass hill on a piece of cardboard...
university physics please show your work
..sliding down a grass hill on a piece of cardboard was a fun summer activity! There was a hill near a park in south St. Louis that had an incline of something like 30 degrees. Once I got started on the top of the hill, I could ride for a distance on the order of 50 meters before arrived at the bottom of the hill. At that time, my mass was just a puny...
5. A 1000-kg car is at the top of a hill as shown, where its elevation...
5. A 1000-kg car is at the top of a hill as shown, where its elevation above the bottom of the hill is 120 m. a. What is its gravitational potential energy? 120 m b. If the cart starts from rest and rolls down the hill with negligible friction and air resistance, what will its kinetic energy be when it reaches the bottom? c. What will be its speed when it reaches the bottom? Suppose instead that there is noticeable...
1) Shayla is sliding in a sled from a top of a 5-m-high snow hill (...
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...
I need help with problem 39 parts b,c,d Unit 7. Work and Energy In Class Packet...
I need help with problem 39 parts b,c,d
Unit 7. Work and Energy In Class Packet Name: 36. A 2.45 kg rock is dropped from the top of a 15.5 m vertical cliff a. What is the potential energy of the rock relative to the base of the cliff before it is dropped? b. What is the kinetic energy of the rock just before it hits the ground below? c. What is the velocity of the rock at a point...
Question 7 1 pts A rock is sliding down a hill. Assume that the hill is 20 meters high and the rock has a mass of 1,000 kilograms. If the rock started at the top of the hill with no initial speed, how much is its kinetic energy when it reaches the bottom of the hill? Use g=10 m/s2. Give the answer in kilojoules.
70kg is sliding up on a hill side at an A mass m incline angle 0 = 30°. The initial velocity of the mass is vi 30m/s, and no external force is applied to the mass on the incline. The height of the structure ish = 25 m Note that the static friction coefficient of snow is i, = 0.5, and kinetic friction coefficient of snow is 0.4. Use the principles of energy and work to find the answen to...
Vo 5) h 200 m A driver coasts down a hill 200 m high with initial speed vo 40 m/s. The road has friction that results in a negative work -1.7 x 10 J. The effect of this is that the total initial energy is reduced by this amount by the time the car reaches the bottom of the hill. Calculate the speed of the car when it reaches the bottom of the hill. The mass of driver and passenger...
university physics please show your work
..sliding down a grass hill on a piece of cardboard was a fun summer activity! There was a hill near a park in south St. Louis that had an incline of something like 30 degrees. Once I got started on the top of the hill, I could ride for a distance on the order of 50 meters before arrived at the bottom of the hill. At that time, my mass was just a puny...
5. A 1000-kg car is at the top of a hill as shown, where its elevation above the bottom of the hill is 120 m. a. What is its gravitational potential energy? 120 m b. If the cart starts from rest and rolls down the hill with negligible friction and air resistance, what will its kinetic energy be when it reaches the bottom? c. What will be its speed when it reaches the bottom? Suppose instead that there is noticeable...
I need help with problem 39 parts b,c,d
Unit 7. Work and Energy In Class Packet Name: 36. A 2.45 kg rock is dropped from the top of a 15.5 m vertical cliff a. What is the potential energy of the rock relative to the base of the cliff before it is dropped? b. What is the kinetic energy of the rock just before it hits the ground below? c. What is the velocity of the rock at a point...
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