Chapter 5: Newton's 3rd Law of Motion

The Boulder pulling up on Earth

A boulder falls due to gravity. The reaction to the force on the boulder is

Two forces

A force interaction requires at least

State of motion of an object

A force is a push or pull that is required to change the

The truck

A massive truck and golf cart have a head on collision with equal amounts of force. The least amount of acceleration occurs for

The same as; more than

A mosquito has a collision with the windshield of a massive high speed truck. The force of the impact on the mosquito is the force of the truck, and the acceleration of the mosquito is the deceleration of the truck.

Components of mg parallel to the surface

A shoe on an incline surface barely remains at rest when friction equals the

4000 N

An axe is swung against a tree with a blow of 4000 N. The force that acts on the axe during this event is

The same

Earth pulls on the moon with a certain force. Relative to this force, the pull of the Moon on Earth is

Equal to 45 drgrees

Horizontal and vertical components of velocity are equal when the projection angle is

Foot

If action is a foot kicking a soccer ball, the reaction is an equal force on the

Mass of what's being hit

The amount of force with which a boxer's punch lands depends on the

The highway pushing back on the wheels of the truck

The force that propels a heavy truck along a highway is provided by

It is kicked by two feet with equal and opposite amounts of force

The net force on a kicked soccer ball can be zero when

Gets progressively less as the slope of the ramp increases

The normal force that acts on a block of ice that slides on a ramp

80 N

The resultant of a 30-N force and a 40-N force cannot possibly be

Equal

Two identical carts have a compression spring between them. When the spring is released, the carts recoil from each other with oppositely directed accelerations that are

Smallest angle to the vertical

When Nellie Newton bangs by a pair of ropes at different angles to the vertical, the rope tension is greater in the rope that makes the

Exerts a net forward force

When a squid pushes against water, the squid moves forward because the water

Ejected air

When the neck of an air-filled balloon is untied and air escapes, the balloon shoots through the air. The force that propels the balloon is provided by the

Move downward

When you jump vertically upward, strictly speaking, you cause Earth to

All of these

Whenever one object exerts a force on second object, the second object exerts a force on the first that: a) is opposite in direction b) is equal in magnitude c) occurs at the same time d) all of these

45 degrees

You run horizontally at 4 m/s in a vertically falling rain that falls 4 m/s. Relative to you, the raindrops are falling at on angle of