physics quiz 2

A commercial jet has a mass of 5000 kg. During takeoff the thrust of its engine is 10,000 N, producing an acceleration of

2 m/s2.

The primary physics that got humans to the Moon was _______.

Newton's laws of motion

A car traveling at 100 km/h strikes an unfortunate bug that splatters on the windshield. The force of impact is greater on the

same for both

Whenever one object exerts a force on a second object, the second object exerts a force on the first that _______.

is opposite in direction is equal in magnitude occurs simultaneously

How hard a boxer's punch lands depends on the _______.

mass of whats being hit

When an apple that weighs 1 N is held at rest above your head, the net force on the apple is

0 N

When you toss a coin straight up, it moves upward, turns around, and drops. During all this time the acceleration of the coin is

downward and constant

If gravity between the Sun and Earth suddenly vanished, Earth would continue moving in a(n) _______.

straight line path

The force required to maintain an object at a constant velocity in free space is equal to

zero

The net force on any object moving at constant velocity is

zero