The figure below shows the instantaneous velocity and acceleration vectors for t

Question

The figure below shows the instantaneous velocity and acceleration vectors for three objects at a particular instant. At the instant shown, the objects all have the same speed (i.e., ) and the same magnitude of acceleration (i.e., ) State whether each object is speeding up, slowing down, or moving at constant speed at the instant shown. Explain why you gave this answer. Object 1 Object 2 Object 3 The velocity vector for object 1 at the instant shown above is reproduced in the figure at right Which of the three arrows shown at right (J, K, or L) could represent the direction of the velocity of object 1 a short time after the instant shown? Explain why you gave this answer. Consider the motions of object 2 and object 3 at a later instant, a short time interval after the instant shown. Will the speed of object 2 be greater than, less than, or equal to the speed of object 3 at the later instant? Explain why you gave this answer. Suppose objects 2 and 3 are each moving along a circular path at the instant shown. Is the radius of the path of object 2 greater than, less than, or equal to the radius of the path of object 3? Explain why you gave this answer.

Explanation / Answer

Object one is speeding up. It is evident from the direction which shown here. Only figure one has a direction which is going up. All the other two has a slowing down direction

Figure K is representing the direction of figure 1, Since J is showing the constant speed direction and L is showing abrupt speed direction, which all are not matching.

Figure 2 and 3 has same acceleration and the velocity direction is somewhat similiar , so i guess they have the same speed

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