A box weighing 800 newtons rests on the floor of an elevator.
A box rests on the floor of an elevator.
2 s after the start.
The elevator starts descending with an acceleration of 1 2 m s 2.
Take g 1 0 m s 2.
N mg if the elevator is at rest or moving at constant velocity n mg ma if the elevator has an upward acceleration n mg ma if the elevator has a downward acceleration.
Because of static friction a force is required to start the box sliding across the floor when the elevator is a stationary b accelerating upward and c accelerating downward.
A box rests on the floor of an elevator.
A box rests on the floor of an elevator.
At a given instant the elevator has a downward velocity of 5 0 m s and an upward acceleration of 2 45 m s 2.
Rank the forces required in these three situations in ascending order i e smallest first.
Find the displacement of the block during the first 0.
Consider the normal force acting on you from the elevator.
The combined system of you elevator has two forces a combined force of gravity and the tension in the cable.