Newton's First and Third Laws Answers

Juan draws a free-body diagram of an object that is in dynamic equilibrium moving to the left.

In deep space, there is very little friction. Once they launch a probe into deep space, where there are no external forces acting on it, scientists shut the probe’s engines off because the scientists want the probe to

John pushes Hector on a plastic toboggan.The free-body diagram is shown.

Kamala puts on inline skates and stands facing a wall. When she pushes against the wall, she rolls backward.Why does pushing harder make her roll faster?

A box is sitting on the floor. The box was then pulled with a force, Ft. The box did not move. The free-body diagram of the box is shown.

Keisha writes that if an object has any external forces acting on it, then the object can be in dynamic equilibrium but not static equilibrium.Which statement best describes Keisha’s error?

Lien is pushing a box across a table. She used a force of 100 N to get the box moving. Which force did she overcome to get the box moving?

Which situation is contrary to Newton’s first law of motion?

Which statements describe an object in motion that has no external force acting on it? Check all that apply.It accelerates and speeds up.It moves at a constant speed.It decelerates and slows down.It changes direction.It moves in the same direction.