How many kilocalories are generated when the brakes are used to bring a 1100- kg car to rest from a speed of 80 km/h

as a general rule, scissors have blades less than 6 in (15 cm) long and usually have handles with finger holes of the same size. shears have blades scissors used to cut hair or fabric must be much sharper.

a displacement distance is size of displ

there are no contact forces mentioned on the list of choices that you've provided.