The figure shows two forces, each of magnitude 4.6 N, acting on an object.
The angle between these forces is 40, and they make equal angles above and below the horizontal. What third force will cause the object to be in equilibrium (acceleration equals zero)?
A) 8.6 N pointing to the right
B) 7.0 N pointing to the right
C) 4.3 N pointing to the right
D) 3.5 N pointing to the right
Question 2
On its own, a certain tow-truck has a maximum acceleration of 3.0 m/s2. What would be the maximum acceleration when this truck was towing a bus of twice its own mass?
A) 2.5 m/s2
B) 2.0 m/s2
C) 1.5 m/s2
D) 1.0 m/s2
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Use a compound angle formulas to evaluate the following:
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