A boy sleds down a hill and onto a frictionless ice-covered lake at 14.4 m/s. In...
A boy sleds down a hill and onto a frictionless ice-covered lake at 14.4 m/s. In the middle of the lake is a 1,000 kg boulder. When the sled crashes into the boulder, he is propelled over the boulder and continues sliding over the ice at 14.4 m/s. If the boy's mass is 40.0 kg and the sled's mass is 13.0 kg, what are the speeds (in m/s) of the sled and the boulder after the elastic collision? (Due to the nature of this problem, do not use rounded intermediate values in your calculations)
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A boy sleds down a hill and onto a frictionless ice-covered lake
at 14.4 m/s. In...
A boy sleds down a hill and onto a frictionless ice-covered lake at 10.0 m/s. In...
A boy sleds down a hill and onto a frictionless ice-covered lake at 10.0 m/s. In the middle of the lake is a 1000-kg boulder. When the sled crashes into the boulder, he is propelled backwards from the boulder. The collision is an elastic collision. If the boy’s mass is 40.0 kg and the sled’s mass is 2.50 kg, what is the speed of the sled and the boulder after the collision? Show all work and sketches
1) (Boy sledding on hill) A boy on a sled (total mass of boy-plus-sled m =...
1) (Boy sledding on hill) A boy on a sled (total mass of boy-plus-sled m = 34 kg) slides down a straight, snowy incline of length 4-236 m angled at a-15° with the horizontal. At the base of the hill is a tiny dip, after which the boy begins sliding up another straight hill, traveling a lern gth L2-40 m at an angle of θ2-300 with the horizontal. The boy starts from rest and ends at rest. Only gravity and...
A4.80 kg chunk of ice is sliding at 13.0 m/s on the floor of an ice-covered...
A4.80 kg chunk of ice is sliding at 13.0 m/s on the floor of an ice-covered valley when it collides with and sticks to another 4.80 kg chunk of ice that is initially at rest. (See (Figure 1).) Since the valley is icy, there is no friction. After the collision, the blocks slide partially up a hillside and then slide back down. Part A How fast are they moving when they reach the valley floor again? Express your answer in...
Two boys are sliding toward each other on a frictionless, ice-covered parking lot. Jacob, mass 45...
Two boys are sliding toward each other on a frictionless, ice-covered parking lot. Jacob, mass 45 kg, is gliding to the right at 8.02 m/s, and Ethan, mass 31.0 kg, is gliding to the left at 10.5 m/s along the same line. When they meet, they grab each other and hang on. (a) What is their velocity immediately thereafter? b) What fraction of their original kinetic energy is still mechanical energy after their collision? (c) That was so much fun...
1) (Boy sledding on hill) A boy on a sled (total mass of boy-plus-sled m = 34 kg) slides down a straight, snowy incline of length 4-236 m angled at a-15° with the horizontal. At the base of the hill is a tiny dip, after which the boy begins sliding up another straight hill, traveling a lern gth L2-40 m at an angle of θ2-300 with the horizontal. The boy starts from rest and ends at rest. Only gravity and...
A4.80 kg chunk of ice is sliding at 13.0 m/s on the floor of an ice-covered valley when it collides with and sticks to another 4.80 kg chunk of ice that is initially at rest. (See (Figure 1).) Since the valley is icy, there is no friction. After the collision, the blocks slide partially up a hillside and then slide back down. Part A How fast are they moving when they reach the valley floor again? Express your answer in...
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