Question

suppose a bulldozer is being hauled at 50 km/h to a construction site on the back of a flatbed truck. from which reference point would the bulldozer not appear to be moving?
a. the road
b. a traffic light
c. the truck driver
d. a roadside tree

Explanation:

To determine the reference point where the bulldozer doesn't appear to move, we use the concept of relative motion. An object appears stationary when the reference point moves with it (same velocity). The bulldozer is on the truck, so the truck driver (in the truck) moves with the bulldozer. The road, traffic light, and roadside tree are stationary relative to the moving truck, so the bulldozer would appear moving from those points.

Answer:

C. the truck driver