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Chapter 9: Q. 74 (page 604)

Force Vectors A man pushes a wheelbarrow up an incline of 20owith a force of 100 pounds. Express the force vector F in terms of i and j.

Short Answer

Expert verified

The force vector can be expressed as F=93i+34j.

Step by step solution

01

Step 1. Given information

A man pushes a wheelbarrow up an incline of 20owith a force of 100 pounds.

We have to express the force vector F in terms of i and j.

02

Step 2. Substitute the values in F=F(icosα+jsinα).

F=100(icos20o+jsin20o)F=100(0.93i+0.34j)F=93i+34j

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