The Bronx High School of Science, Mathematics Department
Valerie Reidy, Principal
Rosemarie Jahoda, A.P. Mathematics
Algebra II / Trigonometry (M$6)
Mr. J. Fox, Instructor
M$6 MORE PROBLEMS INVOLVING FORCES
1)
Two equal forces act on a body at an angle of 80°. If the resultant force is 100 newtons,
find the value of one of the two equal forces, to the nearest hundredth of a newton.
2)
A resultant force of 162 pounds must be exerted to move a refrigerator. If the two applied
forces act on the fridge at (s of 43.6º and 38.7º with the resultant, find the magnitude of
each of the two applied forces to the nearest tenth of a pound.
3)
Two forces act on an object; the first force has a magnitude of 78 pounds and makes an
( of 31.5º with the resultant. The magnitude of the resultant is 124.7 pounds.
a. Find the magnitude of the second applied force to the nearest tenth of a pound.
b. Using the results from part a), find, to the nearest ten minutes or tenth of a
degree, the ( that the second applied force makes with the resultant.
4)
Two applied forces act on a body forming (s of 18º 25’ and 29º 40’ between them and
the resultant.
a. If the larger force is 48.3 pounds, what is the magnitude of the resultant to the
nearest tenth of a pound?
b. What is the magnitude, to the nearest tenth of a pound, of the smaller force