What is the name of the type of force used when you use your brakes? __ What are the two ways that braking uses friction? __ What is the definition of impulse? __ What is the formula for impulse? __

**What is the name of the type of force used when you use your brakes?**<br />Friction<br /><br />**What are the two ways that braking uses friction?**<br />1. Friction between the brake pads and the rotor/disc (or drum in older systems).<br />2. Friction between the tires and the road surface.<br /><br />**What is the definition of impulse?**<br />Impulse is the change in momentum of an object. It is also defined as the product of the force acting on an object and the time interval during which the force acts.<br /><br />**What is the formula for impulse?**<br />Impulse (J) = Force (F) x Time (t) or Impulse (J) = Change in Momentum (Δp) where Δp = mΔv (mass times change in velocity)<br />