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Zain Abdullah

Answers (2)

make a circle diagram and them split the triangle into two right angle triangles . Now apply sinθ=per/hyp you will observe after calculation your answer is 1cm. Also note that θ must be put half i.e 30 and lengh of perp will also be half i.e. 2cm
the answer is 0.44 rad/sec. This is true because the equation for angular velocity is w = (theta)/(time). Since we know theta of a circle is 2pi, and the time is 14.3 seconds, we can just plug the numbers in. w = 2pi / 14.3 = 0.44 rad/sec.

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