# A heavy peice of equipment moved in elevator machine attached by 2 cranes find tensio

hayley123
a hevy piece of macinery(85kg) is being moved by elevator between floors in a building. Two identical small cranes are used. a cable connects each 'crane' to a mounting hook on the top of the piece of equipment. the cable from one crane is at an angle of 22degrees below the horizontal while the cable from the other hangs at 40 degrees. find the tension in each cable if the elevator is accelerating upwards at a constant 0.2ms^-2. and i need to include a vector diagram

## Homework Equations

im thinking ticos22-t2cos40-0
ti=N/sin22something

## The Attempt at a Solution

i drew a picture of what i thought it might look like and I am honestly so baffled.

Homework Helper
Gold Member

The equipment is being held up by 2 cables at the angles noted. It is not in contact with the floor. The horiz comp of each cable tension force acting on the equipment uses the cos function as I think you were addressing. There's no acc in x direction, so Newton 1 applies in that direction. Now in the vert direction, what are the vert comp of each tension force, and what other force acts in the vert direction? Use Newton 2 in that dir. Solve the resulting equations.

hayley123

omg I am still confused haha but ill go through what you said step by step and see how i go thanks

hayley123

ok so far i did f=ma
F=85x9.8-0.2m/s-2
F=812N
so that's the force acting on the cables yeah?

hayley123

108N i mean

hayley123

ah nah I am way off i think