Question

1. with respect to all the other objects in the image, the stationary person is

a. in motion.
b. stationary.
c. moving faster than the other objects
d. moving slower than the other objects.

Explanation:

To determine the state of the stationary person relative to other objects, we analyze motion and rest. The stationary person (left) has a velocity of 0 km/h (as per the label), while Car A (90 km/h), Car B (30 km/h), and the running person (8 km/h) are in motion. So, the stationary person is not moving (stationary) relative to the others? Wait, no—wait, the question is "with respect to all the other objects". Wait, no, let's re - examine. Wait, the stationary person (left) has 0 km/h, and the other objects (cars moving right, running person moving left) are in motion. So, relative to the moving objects (cars, running person), the stationary person is in motion? Wait, no, maybe I misread. Wait, the options: A is "in motion", B is "stationary". Wait, no—wait, the stationary person (the left - hand figure) has a velocity of 0 km/h. The cars are moving to the right (Car A: 90 km/h, Car B: 30 km/h), and the running person is moving to the left (8 km/h). So, relative to the moving objects (cars and the running person), the stationary person is in motion? Wait, no, maybe the question is about the stationary person's state relative to others. Wait, no—wait, the "stationary person" (as per the label on the left figure: 0 km/h) is compared to other objects. The other objects (cars moving right, running person moving left) are in motion. So, from the perspective of the moving objects, the stationary person is moving (since they are at rest while others move). But wait, the option B is "stationary"—no, that can't be. Wait, maybe I made a mistake. Wait, the question is "With respect to all the other objects in the image, the stationary person is...". Let's think about relative motion. If an object is stationary (velocity 0) and others are moving, then relative to the moving objects, the stationary object is in motion. But wait, the label on the left person is "0 km/h", so they are stationary in their own frame, but relative to the moving cars and the running person, they are in motion. But the options: A is "in motion", B is "stationary". Wait, maybe the question has a typo, or I misinterpret. Wait, no—wait, the "stationary person" (the left one) is at rest (0 km/h), and the other objects (cars moving right, running person moving left) are in motion. So, relative to the other objects (which are moving), the stationary person is in motion (because the distance between them and the stationary person is changing). So the correct option should be A? Wait, no, wait the option B is "stationary"—no, that's confusing. Wait, maybe the question is phrased as "the stationary person" (the one with 0 km/h) is what with respect to others. So, if others are moving, then the stationary person is in motion relative to them. So the answer is A? Wait, no, let's check again. The left - hand figure is labeled "0 km/h", so it's stationary in the ground frame. The cars are moving to the right (Car A: 90 km/h, Car B: 30 km/h), and the running person is moving to the left (8 km/h). So, relative to the cars (moving right), the stationary person is moving left (since the cars are moving away from the stationary person to the right). Relative to the running person (moving left), the stationary person is moving right (since the running person is moving towards the left, away from the stationary person). So in both cases, the stationary person is in motion relative to the other objects. So the correct option is A.

Answer:

A. In motion.