A student sits outside of his home and begins to observe his surroundings. Which observation demonstrates the GREATEST amount of potential energy? A. A 1kg rock sitting on the ground because even though the rock is not moving, it has a small mass.
B. A 58kg person running at 5.0 m/s because the person is moving faster.
C. A 58kg person walking at 1.0 m/s because the person is moving slowly.
D. A 990kg car parked outside because even though the car is not moving, it has a large mass.

Iwill give brainliest if you answer right : )

Very large accelerations can injure the body, especially if they last for a considerable length of time. one model used to gauge the likelihood of injury is the severity index ( ), defined as =/ . in the expression, is the duration of the accleration, but is not equal to the acceleration. rather, is a dimensionless constant that = the number of multiples of that the acceleration is equal to. in one set of studies of rear-end collisions, a person's velocity increases by 13.7 km/h with an acceleration of 36.0 m/s2 . let the + direction point in the direction the car is traveling. what is the severity index for the collision?

The seven sisters, seven stars located more than 400 light-years away in the taurus constellation can be seen here with venus and another constellation, orion. the seven stars stay grouped together but seem to move, like the planet venus. why do stars seem to move like planets in the night sky?