Recent content by elf197320501

  1. E

    Calculating Forces at A and B on Shelf in Slot

    Homework Statement When a wood shelf of mass 7.7 kg is fastened inside a slot in a vertical support as shown in (Figure 1) , the support exerts a torque on the shelf. Assume that the slot exerts two vertical forces on the shelf, at points A and B. Determine the force exerted on the shelf by...
  2. E

    Conservation of Energy of Mass on Crane

    Homework Statement A mass is suspended from a crane by a cable of length L. The crane and the mass is moving at constant speed V. The crane stops and the mass on the cable swings out. What is the angle that the mass swings? If the angle is 50 degrees and L=6m, what is the initial speed of the...
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    What is the tension and velocity in a rope attached to a moving space station?

    Homework Statement You're attached to a space station moving at 25000 km/h at a distance of 500 km above Earth by a rope connected to a jetpack(force 3N). Your mass is 60kg. Using the jetpack you move to the maximum extension of the rope (6m) and activate the jetpack for 3s perpendicular to the...
  4. E

    B Drop Ball Moving: Initial Velocity 0m/s?

    Thank you for all the replies, I think I understand and can solve the problem now that I know horizontal and vertical motion are independent (that was mainly what was causing my confusion) and this is the exact wording from the textbook by the way: "Whenever we say "dropped", it means Vo= 0."
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    B Drop Ball Moving: Initial Velocity 0m/s?

    Hi I'm trying to solve a problem but I'm a bit confused about this part: Suppose you are walking at a speed of 2 m/s when you drop the ball that you were holding in your hands. Is the initial velocity 0 m/s? In the textbook it says that initial velocity for dropped objects is 0 m/s but that...
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