Recent content by mistabry

Homework Statement A box of mass M = 1.0 kg is attached to the ceiling by a spring with spring constant k = 112.0 N/m. The spring has a relaxed length L = 28.0 cm. Initially the spring is compressed to a length L/2. If the box is released, at what distance below the ceiling will the box first...

Homework Statement A railroad engine pulls a train of mass 1.3*10^6 kg up an average slope of 1.1 degree for a distance of 57.0 km. If the speed of the train is 48.0 km/h, what is the average power produced by the engine? Homework Equations a = Fn/m The Attempt at a Solution...

Is there like another tension added to the bottom block going right? O.o

Homework Statement A box of mass m = 4.5 kg rests on a larger box of mass M = 26.0 kg, which is at rest on a frictionless surface. The coefficient of static friction between the two boxes is μs = 0.51. An ideal string runs between the two boxes around a fixed pulley. What is the maximum force F...

Homework Statement A block weighing 87.5 N rests on a plane inclined at 25.0o to the horizontal. A force is applied to the object at 50.0o to the horizontal, pushing it upward on the plane. The coefficients of static and kinetic friction between the block and the plane are, respectively...

Lol Turbo, you're funny. This post was for DTodd's homework assignment xD! I hope you're going through the homework well! I did like all of the problems easily until I hit this one with its confusing words, but I finally got it! Aha

Still don't understand what you mean. Can you explain in more detail?

Homework Statement A baseball player friend of yours wants to determine his pitching speed. You have him stand on a ledge and throw the ball horizontally so that his release point is 3.6 m above the ground. The ball lands 29.0 m away. a. What is his pitching speed? b. As you think about...

Wanna know something funny? Common sense tells me that angle 45 shoots the farthest... I can't believe I didn't see it before. d/dx (Δx) = 0 >.< I didn't see that before. Thank you! I solved my problem :]

Homework Statement In a circus act, clowns are shot from a cannon at a constant speed vo = 11.1 m/s. The angle of launch may be varied. What is the maximum distance D that a clown may travel, if the landing pad is at the same height as the mouth of the cannon? Knowns: Vo=11.1 m/s x = 0 y...

Thank you Aviation. I got the answers right with your method with a. 2.522 m/s^2 and b. 107.24 km/hr

Homework Statement You are driving along a highway at 80.0 km/hr in car that is 6.0 m long. Exactly 10 m ahead of you is a truck of length 12.0 m driving at 60.0 km/hr. a. If you wish to pass the truck so that the back of your car just clears the front of the truck in 3.0 s, how fast must...