Physics WAEC

Determine the magnitude of P in the diagram below.

A. 16N
B. 20N
C. 32N
D. 40N

Correct Answer: Option C

C. 32N

Explanation

X = 50 sin30 = 30 x 0.5 = 25cm

40 x 20 = p x 25

p = (40×20)/25

= 32N

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