Question Detail

PHY 101 PHY 101 Past Questions Objective Question

Question

Two forces act on a block: 100 N at 170° and 100 N at 50°. Find the resultant force.
Options
A 20 N at 110°
Correct Answer
B 100 N at 110°
C 100 N at 10°
D 200 N at 60°
Correct Answer

Option A is the correct answer.

Detailed Explanation

Use vector addition and law of cosines to find magnitude and direction.

Hint

R² = A² + B² + 2AB cos θ.

Question Info