Question

Mae is checking her bicycle’s wheel. The wheel has a radius of 28 cm, and its center is 42 cm above the ground. Mae is rotating the wheel at a constant speed of 190°/s. The height of a point on the tire as a function of time is given by h = 42 + 28 sin(190t), where h is the height in centimeters and t is the time in seconds. Find h when t = 2 s. Find your answer to the nearest tenth of a centimeter.

Answer 1

B. 51.6

Explanation:

All you have to do is find h when t=2, so just put h=42+28sin(380) into a calculator and you get 51.57656401...