A joint is moving at an angular velocity of 0.2e0.2t radians per second (where t is the time in seconds since the joint was at rest).Through how many radians does the joint move between t=1 and t=3 ?Choose 1 answer:(A) e0.4(B) e0.6−e0.2(C) 0.2(e0.6−e0.2)(D) 0.2e0.4
Q. A joint is moving at an angular velocity of 0.2e0.2t radians per second (where t is the time in seconds since the joint was at rest).Through how many radians does the joint move between t=1 and t=3 ?Choose 1 answer:(A) e0.4(B) e0.6−e0.2(C) 0.2(e0.6−e0.2)(D) 0.2e0.4
Integrate angular velocity function: The angular displacement of the joint can be found by integrating the angular velocity function with respect to time over the interval from t=1 to t=3.
Given angular velocity function: The angular velocity function is given by ω(t)=0.2e0.2t. To find the angular displacement, we integrate this function from t=1 to t=3.
Evaluate integral with constant: The integral of ω(t)=0.2e0.2t with respect to t is (0.20.2)e0.2t=e0.2t+C, where C is the constant of integration.
Evaluate integral from t=1 to t=3: We evaluate the integral from t=1 to t=3, which gives us e(0.2⋅3)−e(0.2⋅1)=e0.6−e0.2.
Final angular displacement calculation: We multiply the result by the coefficient 0.2 to get the final angular displacement: 0.2(e0.6−e0.2).
More problems from Write equations of cosine functions using properties