## Calculating tension in cable

1.the mass and acceleration is given and asks for tension in cable. What is a formula i could use.

2.in another question initial speed, air resistance, time and speed is given, what is a formula i could use for this question to solve for mass.

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 Recognitions: Homework Help 1. Look up Newton's laws of motion. 2. It would be great to present the whole problem.
 1. An elevator of mass of 900 kg accelerates upwads at 3 m/s^2. What is the tension in the cable where it is attatched to the elevator? 2. A parachutist jumps out of an airplane at an initial speed of 2m/s down. There is a force of air resistance equivalent to 305 N. Determine the mass of the parachutist if it takes 3 seconds to travel 30 m down. So his speed is 10 m/s. And i dnt know anything else

Recognitions:
Homework Help

## Calculating tension in cable

As mentioned above, look up Newton's second law of motion. Part 1 is very simple. Part 2 includes a kinematical equation, i.e. the equation of displacement, from which you will obtain the acceleration.

 ok, thank you , appreciate it
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