Question

2. Spider-Woman Gwen Stacy has secured a 1500 N car (tossed by an trate Hulk) by attaching it to 2 nearby buildings and the street via three strands of strong spider webbing. Two of the strands run from the top of the car to buildings on either side of the street and make angles of 60° to the horizontal in both directions. If the tension in each of these two strands is 2000 N, what is the tension in the final strand running vertically down to the street?

Answer 1

here the car is in equilibrium.

so, Fnet = 0

let F is the tension in the third strand acting downward.

Apply, Fnety = 0

2*T*sin(60) - 1500 - F = 0

==> F = 2*2000*sin(60) - 1500

= 1964 N