Physics Newton law
A 10O0Kg elevator is hoisted upward from rest by a cable. In the first two seconds there is an 1100N tension force in the cable hoisting the elevator. What is the speed after two seconds and how far has it travelled ?
Get the acceleration first.
Tension=mg + m*acceleration.
solve for acceleration.
Then, vfinal=vinitial + acceleration*time
I didn't put numbers in as something is wrong with the mass (1000kg) or the force (1100N) numbers. A force of that magnitude wont support even a still elevator, much less move it upward.
Weight of elevator= mass*g...
Sorry it should have been 11000N. Yes i got the answer 2.4 m/s
Thank you for your help
Harry
please send me all Newton's Lows about physics
what are newton laws?
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Answers
Newton's Laws of Motion are three physical laws that form the basis for classical mechanics. They describe the relationship between a body and the forces acting on it, and its motion in response to those forces. The three laws are: 1. First Law: A body continues in its state of rest or uniform motion in a straight line, unless it is compelled to change that state by forces impressed upon it. 2. Second Law: The rate of change of momentum of a body is directly proportional to the force impressed and is in the same direction. 3. Third Law: To every action there is an equal and opposite reaction.
