Physics 1

Hang from a pair of gym rings and the upward support forces of the rings will always-

add up to equal your weight.

When you stand at rest on a pair of bathroom scales, the readings on the scales will always-

add up to equal your weight.

According to Newton's law of inertia, a railroad train in motion should continue going forever even if its engine is turned off. We never observe this because railroad trains-

always have forces that oppose their motion.

The force of friction on a sliding object is 10 N. The applied force needed to maintain a constant velocity is-

10 N

A man weighing 800 N stands at rest on two bathroom scales so that his weight is distributed evenly over both scales. The reading on each scale is-

400 N

The scientist to first introduce the concept of inertia was-

Galileo

If no external forces are acting on a moving object, it will-

continue moving at the same velocity.

A truck is moving at constant velocity. Inside the storage compartment, a rock is dropped from the midpoint of the ceiling and strikes the floor below. The rock hits the floor-

exactly below the midpoint of the ceiling.

If your automobile runs out of fuel while you are driving, the engine stops but you do not come to an abrupt stop. The concept that most explains why is-

inertia.

A sheet of paper can be withdrawn from under a container of milk without toppling it if the paper is jerked quickly. This best demonstrates that-

the milk carton has inertia.