Here we will use conservation of linear momentum.
1. Suppose that you have a mass of 45.7 kg and are standing on frictionless roller...
PLEASE ANSWER ALL PARTS, THANK YOU !!!!! You are sitting in a sled, at rest on a pond covered with nice, thick, frictionless ice. Your own mass of is 84.0 kg, and the mass of the sled when empty is 11.0 kg. (a) From shore, someone throws a baseball of mass 0.11 kg to you, and you catch it; the horizontal component of the ball’s velocity is 25.2 m/s. What will be the sled’s (and your) speed with respect to...
If a person with mass 70.0kg, standing still, throws an object with mass 5.0 kg at 50.0 m/s, what will be the recoil velocity of the person, assuming he is standing on a frictionless surface? A.) -3.6 m/s B.) 0 m/s C.) 3.6 m/s D.) 50.0 m/s
You are sitting in a sled, at rest on a pond covered with nice, thick, frictionless ice. Your own mass of is 84 kg, and the mass of the sled when empty is 11.5 kg. (a) From shore, someone throws a baseball of mass 0.11 kg to you, and you catch it; the horizontal component of the ball’s velocity is 32.6 m/s. What will be the sled’s (and your) speed with respect to the surface of the pond after you...
(b) Once again, you're standing on the center of a frozen, frictionless pond. This time, your friend throws you a massive physics textbook from the side of the pond, which you catch. (i) If your mass is 100 kg, the book's mass is 10 kg, and it is thrown with a horizontal speed of 10ms-4, what will be your resulting speed? (ii) If the pond's diameter is 20m, how long will it take you to reach the edge?
You are standing on a large sheet of frictionless ice and are holding a large rock. In order to get off the ice, you throw the rock so it has velocity relative to the earth of 12.4 m/s at an angle of 34.0 ? above the horizontal. If your mass is 74.0 kg and the rock's mass is 14.7 kg , what is your speed after you throw the rock?
9: While standing on roller skates, a 60 kg boy pushes his 35 kg little brother (also on skates) with a horizontal force The little brother is observed to have an acceleration of 2 m/s2 while the older brother is pushing him. (a) What is the resulting acceleration of the older brother while he is pushing the little brother? (b) If the push from the older brother on the younger brother lasts for .72 seconds, how fast is each brother...
how to do this question? While Standing on frictionless ice, you (mass 65.0 kg) toss a 4.50 kg rock with initial speed 12.0 m/s. The rock is 15.2 m from you when it lands. Take the x axis on the ice surface in the horizontal direction of the motion of the rock. Ignore the initial height of the toss. Part A At what angle did you toss it? Part B How fast are you moving? |v| =
In the figure, a frictionless roller coaster car of mass m = 637 kg tops the first hill with speed v0 = 19.3 m/s at height h = 37.2 m. How much work does the gravitational force do on the car from that point to (a) point A, (b) point B, and (c) point C? If the gravitational potential energy of the car-Earth system is taken to be zero at C, what is its value when the car is at...
A 40 kg sled on frictionless ice is at rest next to you. You are standing on the ground. You push on it with a force of 10 N for 3 seconds. The sled moves away. You remain stationary. a. How much total impulse was applied to the sled? (in N•s) b. What is the final velocity of the sled? c. How much impulse did the sled apply to you? d. What is your final velocity?
Blocks A (mass 5.00 kg ) and B (mass 14.50 kg ) move on a frictionless, horizontal surface. Initially, block B is at rest and block A is moving toward it at 9.00 m/s . The blocks are equipped with ideal spring bumpers. The collision is head-on, so all motion before and after the collision is along a straight line. Let +x be the direction of the initial motion ofA. Part A Find the maximum energy stored in the spring...