When the beam makes an angle of 40
degrees with the ground, the top of the
beam is 8 feet above the ground
 there are telephone
wires nearby and the
workers are worried that
the beam may hit the
wires will it?

A construction crew wants to hoist a heavy 
beam so that it is standing up straight. They 
tie a rope to the beam, secure the base, and 
pull the rope through a pulley to raise one 
end of the beam from the ground. When 
the beam makes an angle of 40 degrees with the 
ground, the top of the beam is 8 ft above 
the ground. 
Th e construction site has some telephone 
wires crossing it. Th e workers are 
concerned that the beam may hit the wires. 
When the beam makes an angle of 60 degrees with 
the ground, the wires are 2 ft above the top 
of the beam. Will the beam clear the wires 
on its way to standing up straight?

3; 9 is 8 to -4

step-by-step explanation: