Newton's Laws Review

Using Newton's 1st Law, explain how airbags keep people safe during a car crash.

Draw a free body diagram for the following situation and label all of the forces. A 5 kg crate of pineapples sits on the floor. A person pushes the box to the left with 2.5 N. Friction resists this motion is 0.9 N.

A 5 kg crate of pineapples sits on the floor. A person pushes the box to the left with 2.5 N. Friction resists the motion with 0.9N.

What is the net force acting on the crate of pineapples?

• 1.6 N <--

• 1.6 N -->

• 3.4 N -->

• 3.4 N <--

A 64 kg student is pushed on a flat ice skating rink with 12 N of force. If the friction between the student and the ice is 2.5 N, what is the resulting acceleration?

• 0.23 m/s/s

• 0.15 m/s/s

• 928 m/s/s

• 608 m/s/s

What is the mass of a mini Australian Shepard that weighs 88.11 N on Earth? Round to the nearest whole number.

A cat pushes a flower vase off of a table. Draw a picture and label at least 2 Newton's 3rd Law force pairs.