A car accelerates at 2 meters per second per second. assuming the car starts from rest, how much time does it need to accelerate to a speed of 30 m/s?

The magnitude of a vector can be positive or negative The magnitude of a vector can be less than the magnitude of one of its components.

What should a free-body diagram look like for a skydiver who has opened his parachute and is now slowing down as he falls? There is an arrow up for air resistance and an arrow down for gravity. The arrow up is longer than the arrow down.

A skier has decided that on each trip down a slope, she will do 3 more jumps than before. On her first trip she did 5 jumps.

If a woman weighs 125 lb, her mass expressed in kilograms is x kg, where x is

What equal and opposite reaction do you see in a roller coaster

An automotive research facility is testing a new design on bumpers to determine the force at which it will break.

Gravity is greater when there is

A gas has a volume of 6 L, a temperature of 70 degrees C, and a pressure of 2 atm. If the gas is compressed to a volume of 4 L, and the pressure increases to 5 atm, what will be the new temperature of the gas?

When looking at the Impulse of an object during a collision, we often use "average force"? When an object hits something, is the force on an object changing? Explain.

Which of the following is a FALSE statement about acceleration?