Question

Consider an object moving along a line with the given velocity v. Assume time t is measured in seconds and velocities have units of m/s. Let v(t) = 9 cos ?t on 0 ? t ? 2. a. Determine when the motion is in the positive direction and when it is in the negative direction. b. Find the displacement over the given interval. c. Find the distance traveled over the given interval. a. Select the correct choice below and fill in the answer boxes to complete your choice. (Simplify your answers. Type exact answers, using ? as needed.) A. The motion is in the positive direction on [ ] < t < [ ]. The motion is in the negative direction on [ ] ? t < [ ] and [ ] < t ? [ ]. B. The motion is in the positive direction on [ ] ? t ? [ ] and [ ] ? t ? [ ]. The motion is in the negative direction on [ ] ? t ? [ ]. C. The motion is in the positive direction on [ ] ? t < [ ] and [ ] < t ? [ ]. The motion is in the negative direction on [ ] < t < [ ]. D. The motion is in the positive direction on [ ] < t < [ ]. The motion is in the negative direction on [ ] < t < [ ]. b. The displacement is [ ] (Type an exact answer, using ? as needed.) c. The distance is [ ] (Type an exact answer, using ? as needed.)

          Consider an object moving along a line with the given velocity v. Assume time t is measured in seconds and velocities have units of m/s. Let v(t) = 9 cos ?t on 0 ? t ? 2.

a. Determine when the motion is in the positive direction and when it is in the negative direction.
b. Find the displacement over the given interval.
c. Find the distance traveled over the given interval.

a. Select the correct choice below and fill in the answer boxes to complete your choice. (Simplify your answers. Type exact answers, using ? as needed.)

A. The motion is in the positive direction on [ ] < t < [ ]. The motion is in the negative direction on [ ] ? t < [ ] and [ ] < t ? [ ].

B. The motion is in the positive direction on [ ] ? t ? [ ] and [ ] ? t ? [ ]. The motion is in the negative direction on [ ] ? t ? [ ].

C. The motion is in the positive direction on [ ] ? t < [ ] and [ ] < t ? [ ]. The motion is in the negative direction on [ ] < t < [ ].

D. The motion is in the positive direction on [ ] < t < [ ]. The motion is in the negative direction on [ ] < t < [ ].

b. The displacement is [ ] (Type an exact answer, using ? as needed.)

c. The distance is [ ] (Type an exact answer, using ? as needed.)

Consider an object moving along a line with the given velocity v. Assume time t is measured in seconds and velocities have units of m/s. Let v(t) = 9 cos ?t on 0 ? t ? 2.

a. Determine when the motion is in the positive direction and when it is in the negative direction.
b. Find the displacement over the given interval.
c. Find the distance traveled over the given interval.

a. Select the correct choice below and fill in the answer boxes to complete your choice. (Simplify your answers. Type exact answers, using ? as needed.)

A. The motion is in the positive direction on [ ] < t < [ ]. The motion is in the negative direction on [ ] ? t < [ ] and [ ] < t ? [ ].

B. The motion is in the positive direction on [ ] ? t ? [ ] and [ ] ? t ? [ ]. The motion is in the negative direction on [ ] ? t ? [ ].

C. The motion is in the positive direction on [ ] ? t < [ ] and [ ] < t ? [ ]. The motion is in the negative direction on [ ] < t < [ ].

D. The motion is in the positive direction on [ ] < t < [ ]. The motion is in the negative direction on [ ] < t < [ ].

b. The displacement is [ ] (Type an exact answer, using ? as needed.)

c. The distance is [ ] (Type an exact answer, using ? as needed.)

Added by Dolores W.

Question

Please give Ace some feedback